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James Cromwell

James Cromwell

James Cromwell (born January 27, 1940) is an American television and film actor. He is sometimes credited as Jamie Cromwell. He was born John Oliver Cromwell in Los Angeles, California, but raised in Manhattan, New York. He was the adopted son of John Cromwell and actress Kay Johnson. Cromwell was educated at The Hill School, Middlebury College and the Carnegie Institute of Technology. He studied acting at Carnegie Mellon University. He went into the theater (like both his parents) doing everything from Shakespeare to experimental plays. He began work in television in the mid-1970s (notably Stretch Cunningham on All in the Family and a lead character in "Hot L Baltimore"), made his film debut in 1976, and goes back to the stage periodically. Cromwell starred as a series regular in the last two seasons of the HBO original series Six Feet Under. He portrayed George Sibley, Ruth Fisher's geologist husband. Other notable roles include farmer Arthur Hoggett in Babe (1995) and Dr. Zefram Cochrane in Star Trek: First Contact (1996) (the Star Trek: Enterprise episode "In a Mirror, Darkly" later reused some of this footage [http://www.trektoday.com/news/270405_02.shtml]). He has appeared on Star Trek: The Next Generation and Star Trek: Deep Space Nine. He portrayed Bishop Lionel Stewart in several episodes of ER (2001), U.S. President Robert "Bob" Fowler in The Sum of All Fears (2002) and the role of former President D. Wire Newman in an episode of The West Wing (2004). He played Dr. Alfred Lanning, creator of modern robots and inventor of the Three Laws of Robotics in the 2004 movie I, Robot. He also recently appeared as the warden in the remake of The Longest Yard . James Cromwell is also an ethical vegan and frequently speaks out on issues regarding animal cruelty.

Selected filmography


- Pope John Paul II (TV) (2005
- The Longest Yard (2005)
- Six Feet Under (2001) (TV series) (2004–2005)
- I, Robot (2004)
- 'Salem's Lot (2004) (TV)
- Angels in America (2003)
- The Sum of All Fears (2002)
- Spirit: Stallion of the Cimarron (2002) (voice)
- The Magnificent Ambersons (2002) (TV)
- Space Cowboys (2000)
- The General's Daughter (1999)
- The Green Mile (1999)
- Snow Falling on Cedars (1999)
- Babe: Pig in the City (1998)
- Deep Impact (1998)
- Species II (1998)
- L.A. Confidential (1997)
- Star Trek: First Contact (1996)
- The People vs. Larry Flynt (1996)
- Eraser (1996)
- Babe (1995)
- Revenge of the Nerds IV: Nerds in Love (1994) (TV)
- Revenge of the Nerds III: The Next Generation (1992) (TV)
- Miracle Landing (1990) (TV)
- Revenge of the Nerds II: Nerds in Paradise (1987)
- Revenge of the Nerds (1984)
- The Man with Two Brains (1983)
- The Cheap Detective (1978)
- Murder by Death (1976)
- Hot L Baltimore (1975) (TV series)

External links


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- Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James Cromwell, James ja:ジェームズ・クロムウェル

1940

1940 (MCMXL) was a leap year starting on Monday (link will take you to calendar).

March-April


- March 3 - In Sweden, a time bomb destroys the office of Norrskenflamman newspaper of Swedish communists - 5 dead
- March 5- Members of Soviet politburo: Stalin, Molotov, Lazar Kaganovich, Mikhail Kalinin, Kliment Voroshilov and Lavrenty Beria himself, signed prepared by Beria order of execution of 25,700 Polish intelligentsia, including 14,700 Polish POW, known also as Katyn massacre.
- March 12 - Soviet Union and Finland sign a peace treaty in Moscow ending the Winter War. Finns, and the World opinion, shocked by the harsh terms.
- March 18 - World War II: Axis powers - Adolf Hitler and Benito Mussolini meet at Brenner Pass in the Alps and agree to form an alliance against France and the United Kingdom.
- March 21 Édouard Daladier resigns as prime minister of France. He is replaced by Paul Reynaud.
- April 4 - Prime minister of Greece, Aleksandros Korizis, shoots himself - initial official explanation is "heart attack"
- April 7 - Booker T. Washington becomes the first African American to be depicted on a United States postage stamp.
- April 9 - World War II: Germany invades Denmark and Norway in operation Weserübung. The British campaign in Norway is simultaneously commenced.
- April 12 - The Faroe Islands were occupied by British troops following the invasion of Denmark by Nazi Germany. This action was taken to avert a possible German occupation of the islands, which would have had very grave consequences for the course of the Battle of the Atlantic.
- April 23 - Rhythm Night Club burns in Natchez, Mississippi - 198 dead

June


- June 4 - World War II: Dunkirk evacuation ends - British forces complete evacuating 300,000 troops from Dunkirk in France.
- June 9 - World War II: The British Commandos are created.
- June 10 - World War II: Italy declares war on France and the United Kingdom.
- June 10 - World War II: U.S. President Franklin D. Roosevelt denounces Italy's actions with [ftp://webstorage2.mcpa.virginia.edu/library/nara/fdr/audiovisual/speeches/fdr_1940_0610.mp3 "Stab in the Back"] speech from the graduation ceremonies of the University of Virginia.
- June 10 - World War II: German forces, under General Erwin Rommel, reach the English Channel.
- June 10 - World War II: Canada declares war on Italy.
- June 10 - World War II: Norway surrenders to German forces.
- June 12 - World War II: 13,000 British and French troops surrender to Field Marshal Erwin Rommel at St. Valery-en-Caux.
- June 14 - World War II: Paris falls under German occupation.
- June 14 - World War II: U.S. President Franklin D. Roosevelt signs the Naval Expansion Act into law which aims to increase the United States Navy's tonnage by 11 %.
- June 14 - Holocaust: A group of 728 Polish political prisoners from Tarnów become the first residents of the Auschwitz concentration camp.
- June 17 - The three Baltic states of Estonia, Latvia and Lithuania fall under the occupation of the Soviet Union.
- June 17 - World War II: Operation Ariel begins - Allied troops start to evacuate France, following Germany's takeover of Paris and most of the nation.
- June 17 - World War II: Luftwaffe Junkers 88 bomber sinks British ship RMS Lancastria, that was evacuating troops from near Saint-Nazaire, France. Death toll is over 2500. Wartime censorship prevents the story going public.
- June 23 - World War II: German leader Adolf Hitler surveys newly defeated Paris in now occupied France.[http://history1900s.about.com/library/holocaust/blhitler38.htm]

July-August

France
- July 5 - World War II: The United Kingdom and the Vichy France government break off diplomatic relations.
- July 10 - World War II: Vichy France government established. French national assembly votes full powers to Marshal Philippe Pétain
- July 10 - Tom Wintringham opens his own training school in Osterley Park for British Home Guard volunteers
- July 10 - World War II: Battle of Britain. Luftwaffe, the Air Force of Germany, in preparation for Operation Sealion begins to hit British convoys in the English Channel thus starting the battle (this start date is contested, though).
- July 14 - World War II: Andrew George Latta McNaughton takes command 7th Army Corps consisting of British, Canadian and New Zealand troops.
- July 21 - Estonia, Latvia and Lithuania are proclaimed to be "independent" Socialist republics.
- August 3 - Lithuania is officially incorporated in the Soviet Union as the Lithuanian SSR.
- August 5 - Latvia is officially incorporated in the Soviet Union as the Latvian SSR.
- August 6 - Estonia is officially incorporated in the Soviet Union as the Estonian SSR.
- August 20 - Ramón Mercader assassinates exiled Russian revolutionary Leon Trotsky in Mexico City with an ice-ax. Trotsky dies the next day.

September-October

Mexico City
- September 4 - World War II: The USS Greer becomes the first United States ship fired upon by a German submarine in the war, even though the United States is a neutral power. Tension heightens between the two nations as a result.
- September - U.S. Army 45th Infantry Division activated and ordered into federal service for one year to engage in a training program in Ft. Sill and Louisiana prior to serving in World War II.
- September 7 - Treaty of Craiova: Romania loses Southern Dobrudja to Bulgaria.
- September 7 - World War II: The Blitz - Nazi Germany begins to rain bombs on London. This will be the first of 57 consecutive nights of strategic bombing.
- September 12 - The Hercules Munitions Plant in Kenvil, New Jersey explodes, killing 55 people.
- October 9 - World War II: Battle of Britain - During a nighttime air raid by the German Luftwaffe, St. Paul's Cathedral is pierced by a bomb; Musician John Lennon is born during an air-raid in Liverpool, England.
- October 15 - First release of The Great Dictator, directed by Charlie Chaplin who is cast as fascist dictator Adenoid Hynkel, clearly modeled on Führer Adolf Hitler of Nazi Germany.
- October 28 - World War II: Italy invades Greece.
- October 31 - World War II: Battle of Britain ends - The United Kingdom prevents Germany from invading Britain.

November


- November 1 - French children discover Lascaux caves
- November 5 - U.S. presidential election, 1940: Democrat incumbent Franklin D. Roosevelt defeats Republican challenger Wendell Willkie and becomes the United States' first third-term president.
- November 7 - In Washington, the middle section of the Tacoma Narrows Bridge collapses in a windstorm, a mere four months after the bridge's completion (it opened to traffic on July 1, 1940 as the third-longest suspension bridge in the world).
- November 9 - Premiere of Joaquin Rodrigo's Concierto de Aranjuez in Barcelona, Spain.
- November 11 - World War II: Battle of Taranto - The Royal Navy launches the first aircraft carrier strike in history, on the Italian fleet at Taranto.
- November 11 - World War II: The German Hilfskreuzer (cruiser) Atlantis captures top secret British mail, and sends it to Japan
- November 11 - Armistice Day Blizzard: An unexpected blizzard kills 144 in U.S. Midwest.
- November 14 - World War II: In England, the city of Coventry is destroyed by 500 German Luftwaffe bombers (150,000 fire bombs, 503 tons of high explosives, 130 parachute mines leveled 60,000 of the city's 75,000 buildings; 568 people were killed).
- November 16 - World War II: In response to Germany leveling Coventry two days before, the Royal Air Force begins to bomb Hamburg (by war's end, 50,000 Hamburg residents died from Allied attacks).
- November 16 - Unexploded pipe bomb founded in Consolidated Edison office building (only years later the culprit, George Metesky, is apprehended
- November 18 - World War II: German leader Adolf Hitler and Italian Foreign Minister Galeazzo Ciano meet to discuss Benito Mussolini's disastrous invasion of Greece.
- November 20 - World War II: Hungary, Romania and Slovakia join the Axis Powers.
- November 27 - In Romania, coup leader General Ion Antonescu's Iron Guard arrests and executes over 60 of exiled king Carol II of Romania's aides. Among the dead is former minister and acclaimed historian Nicolae Iorga.
- November 27 - World War II: Royal Navy and Regia Marina fight the Battle of Cape Spartivento.

December


- December 30 - California's first modern freeway, the future California State Route 110, is opened to traffic in Pasadena, California, as the Arroyo Seco Parkway. It is now called the Pasadena Freeway.

Unknown Date


- Guilin, China, acquires current name.

Ongoing Events


- Sino-Japanese War (1937-1945)
- World War II (1939 - 1945).

Births

See also :Category:1940 births

January-February


- January 4 - Brian David Josephson, Welsh physicist, Nobel Prize laureate
- January 4 - Gao Xingjian, Chinese-born writer, Nobel Prize laureate
- January 6 - Penny Lernoux, American journalist and author (d. 1989)
- January 14 - Julian Bond, American civil rights activist
- January 20 - Carol Heiss, American figure skater
- January 22 - John Hurt, English actor
- February 2 - David Jason, English actor
- February 3 - Fran Tarkenton, American football player
- February 4 - George Romero, American film writer, producer, and director
- February 5 - H.R. Giger, Swiss artist
- February 6 - Tom Brokaw, American television news reporter
- February 6 - Jimmy Tarbuck, English comedian
- February 8 - Ted Koppel, American journalist
- February 8 - Joe South, American singer and songwriter
- February 9 - J. M. Coetzee, South African writer, Nobel Prize laureate
- February 12 - Richard Lynch, American actor
- February 19 - Smokey Robinson, American musician
- February 20 - Jimmy Greaves, English footballer
- February 21 - James Wong, Hong Kong composer (d. 2004)
- February 23 - Peter Fonda, American actor
- February 24 - Denis Law, Scottish footballer
- February 25 - Ron Santo, baseball player
- February 28 - Mario Andretti, American race car driver
- February 29 - Edward Frederic Benson, American writer

March-April


- March 3 - Germán Castro Caycedo, Colombian writer and journalist.
- March 6 - Willie Stargell, baseball player (d. 2001)
- March 7 - Rudi Dutschke, German student leader (d. 1979)
- March 9 - Raúl Juliá, Puerto Rican actor (d. 1994)
- March 10 - Chuck Norris, American actor and martial artist
- March 12 - Al Jarreau, American singer
- March 15 - Phil Lesh, American musician (Grateful Dead)
- March 16 - Bernardo Bertolucci, Italian writer and film director
- March 16 - Chuck Woolery, American game show host
- March 17 - Mark White, Governor of Texas
- March 22 - Haing S. Ngor, Cambodian actor (d. 1996)
- March 25 - Anita Bryant, American entertainer
- March 26 - Spiridon Louis, Greek runner
- March 27 - Cale Yarborough, American race car driver
- March 29 - Ray Davis, American musician (P-Funk)
- March 30 - Astrud Gilberto, Brazilian-born singer
- April 1 - Wangari Maathai, Kenyan environmentalist, recipient of the Nobel Peace Prize
- April 2 - Penelope Keith, English actress
- April 12 - Herbie Hancock, American musician
- April 16 - Queen Margrethe II of Denmark
- April 18 - Joseph L. Goldstein, American scientist, recipient of the Nobel Prize in Physiology or Medicine
- April 20 - George Takei, American actor
- April 25 - Al Pacino, American actor
- April 26 - Giorgio Moroder, Austrian film composer

May-July


- May 1 - Elsa Peretti, Italian jewelry designer
- May 8 - Ricky Nelson, American singer (d. 1985)
- May 9 - James L. Brooks, American film producer and writer
- May 11 - Juan Downey, Chilean-born video artist (d. 1993)
- May 17 - Alan Kay, American computer scientist
- May 20 - Stan Mikita, Slovakian-born hockey player
- May 20 - Sadaharu Oh, Japanese baseball player
- May 22 - Bernard Shaw, American journalist and television news reporter
- May 24 - Joseph Brodsky, Russian-born poet, Nobel Prize laureate (d. 1996)
- May 29 - Farooq Leghari, President of Pakistan
- June - Carole Ann Ford, British actress
- June 1 - René Auberjonois, American actor
- June 2 - King Constantine II of Greece
- June 16 - Neil Goldschmidt, Governor of Oregon
- June 17 - George Akerlof, American economist, Nobel Prize laureate
- June 20 - John Mahoney, English-born actor
- June 21 - Mariette Hartley, American actress
- June 23 - Adam Faith, English singer and actor (d. 2003)
- June 23 - Lord Irvine of Lairg, Lord Chancellor of England
- June 23 - Wilma Rudolph, American athelete (d. 1994)
- June 25 - A.J. Quinnell, English writer (d. 2005)
- July 3 - César Tovar, Venezuelan Major League Baseball player (d. 1994)
- July 7 - Ringo Starr, English drummer (The Beatles)
- July 10 - Gene Alley, baseball player
- July 10 - Helen Donath, American soprano
- July 13 - Patrick Stewart, English actor
- July 18 - Joe Torre, baseball player and manager
- July 22 - Alex Trebek, Canadian game show host
- July 24 - Stanley Hauerwas, American theologian
- July 26 - Mary Jo Kopechne, American aide to Robert F. Kennedy (d. 1969)
- July 27 - Bharati Mukherjee, Indian-born novelist

August-December


- August 3 - Martin Sheen, American actor
- August 7 - Jean-Luc Dehaene, Prime Minister of Belgium
- August 9 - Beverlee McKinsey, American actress
- August 10 - Bobby Hatfield, American singer (Righteous Brothers) (d. 2003)
- August 20 - Rubén Hinojosa, American politician
- August 25 - José Van Dam, Belgian bass-baritone
- September 5 - Raquel Welch, American actress
- September 10 - David Mann, American artist (d. 2004)
- September 12 - Mickey Lolich, baseball player
- September 14 - Larry Brown, American basketball coach
- September 13 - Óscar Arias, Costa Rican politician, recipient of the Nobel Peace Prize
- October 9 - John Lennon, English musician and singer (The Beatles) (d. 1980)
- October 13 - Pharaoh Sanders, American saxophonist
- October 14 - Cliff Richard, English singer
- October 15 - Peter Doherty, Australian immunologist, recipient of the Nobel Prize in Physiology or Medicine
- October 19 - Michael Gambon, Irish actor
- October 23 - Pelé, Brazilian footballer
- October 25 - Bobby Knight, American basketball coach
- November 1 - Ramesh Chandra Lahoti, Chief Justice of India
- November 15 - Sam Waterston, American actor
- November 21 - Richard Marcinko, U.S. Navy SEAL team member and author
- November 25 - Joe Gibbs, American football coach
- November 27 - Bruce Lee, American martial artist and actor (d. 1973)
- December 1 - Richard Pryor, American actor and comedian (d. 2005)
- December 4 - Gary Gilmore, American murderer
- December 5 - Peter Pohl, Swedish writer
- December 12 - Sharad Pawar, Indian politician
- December 12 - Dionne Warwick, American singer
- December 21 - Frank Zappa, American musician, composer, and satirist (d. 1993)
- December 22 - Noel Jones, British Ambassador to Kazakhstan (d. 1995)
- December 26 - Edward C. Prescott, American economist, Nobel Prize laureate

Deaths


- January 4 - Flora Finch, English-born actress and comedienne (b. 1869)
- January 18 - Kazimierz Tetmajer, Polish poet and writer (b. 1865)
- January 27 - Isaac Babel, Ukrainian writer (b. 1894)
- February 11 - John Buchan, 1st Baron Tweedsmuir, Governor General of Canada (b. 1875)
- March 10 - Mikhaïl Boulgakov, Russian writer (b. 1891)
- March 16 - Selma Lagerlöf, Swedish writer, Nobel Prize laureate (b. 1858)
- March 20 - Alfred Ploetz, German physician, biologist, and eugenicist (b. 1860)
- March 31 - Tinsley Lindley, English footballer (b. 1865)
- April 26 - Carl Bosch, German chemist, Nobel Prize laureate (b. 1874)
- May 15 - Menno ter Braak, Dutch writer (b. 1902)
- May 20 - Verner von Heidenstam, Swedish writer, Nobel Prize laureate (b. 1859)
- May 25 - Joe De Grasse, Canadian film director (b. 1873)
- May 28 - Prince Frederick Charles of Hesse (b. 1868)
- June 10 - Marcus Garvey, Jamaican-born publisher, entrepreneur, and black nationalist (b. 1887)
- June 17 - Arthur Harden, English chemist, Nobel Prize laureate (b. 1865)
- June 21 - Smedley Butler, U.S. general (b. 1881)
- June 29 - Paul Klee, Swiss artist (b. 1879)
- July 4 - Robert Pershing Wadlow, tallest man in the world (infection) (b. 1918)
- August 8 - Johnny Dodds, American jazz clarinettist (b. 1892)
- August 18 - Walter Chrysler, American automobile pioneer (b. 1875)
- August 21 - Leon Trotsky, Russian revolutionary (b. 1879)
- August 22 - Mary Vaux Walcott, American artist and naturalist (b. 1860)
- August 30 - J.J. Thomson, English physicist, Nobel Prize laureate (b. 1856)
- September 27 - Julius Wagner-Jauregg, Austrian neuroscientist, recipient of the Nobel Prize in Physiology or Medicine (b. 1857)
- October 10 - Berton Churchill, Canadian actor (b. 1876)
- November 9 - Neville Chamberlain, Prime Minister of the United Kingdom (b. 1869)
- December 5 - Jan Kubelík, Czech violinist (b. 1880)
- December 19 - Kyösti Kallio, President of Finland (b. 1873)
- December 21 - F. Scott Fitzgerald, American writer (b. 1896)
- December 25 - Agnes Ayres, American actress (b. 1898)

Date unknown


- December - Raymond Pearl, American biologist (b. 1879)

Nobel Prizes


- Physics - not awarded
- Chemistry - not awarded
- Physiology or Medicine - not awarded
- Literature - not awarded
- Peace - not awarded
- ko:1940년 ms:1940 ja:1940年 simple:1940 th:พ.ศ. 2483

Television

: Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission as well. programming ]]

History

The development of television technology can be partitioned along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. From the latter descended all modern televisions, but these would not have been possible without discoveries and insights from the mechanical systems. The word television is a hybrid word, created from both Greek and Latin. Tele- is Greek for "far", while -vision is from the Latin visio, meaning "vision" or "sight". It is often abbreviated as TV or the telly.

Electromechanical television

The German student Paul Gottlieb Nipkow proposed and patented the first electromechanical television system in 1885. Nipkow's spinning disk design is credited with being the first television image rasterizer. However, it wasn't until 1907 that developments in amplification tube technology made the design practical. Meanwhile, Constantin Perskyi had coined the word television in a paper read to the International Electricity Congress at the International World Fair in Paris on August 25, 1900. Perskeyi's paper reviewed the existing electromechanical technologies, mentioning the work of Nipkow and others. 1900 In 1911, Boris Rosing and his student Vladimir Kosma Zworykin achieved a television system that used a mechanical mirror-drum scanner to transmit, in Zworykin's words, "very crude images" over wires to the electronic Braun tube (cathode ray tube) in the receiver. Moving images were not possible because, in the scanner, "the sensitivity was not enough and the selenium cell was very laggy." Zworykin later went to work for RCA to build a purely electronic television, the design of which was eventually found to violate patents by Philo Taylor Farnsworth. On March 25, 1925, Scottish inventor John Logie Baird gave a demonstration of televised silhouette images at Selfridge's Department Store in London. But if television is defined as the transmission of live, moving, half-tone (grayscale) images, and not silhouette or still images, Baird achieved this privately on October 2, 1925, and gave the world's first public demonstration of a working television system to members of the Royal Institution and a newspaper reporter on January 26, 1926 at his laboratory in London. Unlike later electronic systems with several hundred lines of resolution, Baird's vertically scanned image, using a scanning disc embedded with a double spiral of lenses, had only 30 lines, just enough to reproduce a recognizable human face. In 1928 Baird's company (Baird Television Development Company / Cinema Television) broadcast the first transatlantic television signal, between London and New York, and the first shore to ship transmission. He also demonstrated an electromechanical colour, infrared (dubbed "Noctovision"), and stereoscopic television, using additional lenses, disks and filters. In parallel he developed a video disk recording system dubbed "Phonovision"; a number of the Phonovision[http://www.tvdawn.com/tvimage.htm] recordings, dating back to 1927, still exist. In 1929 he became involved in the first experimental electromechanical television service in Germany. In 1931 he made the first live transmission, of the Epsom Derby. In 1932 he demonstrated ultra-short wave television. Baird's electromechanical system reached a peak of 240 lines of resolution on BBC television broadcasts in 1936, before being discontinued in favor of a 405 line all-electronic system. In the U.S., Charles Francis Jenkins was able to demonstrate on June 13, 1925, the transmission of the silhouette image of a toy windmill in motion from a naval radio station to his laboratory in Washington, using a lensed disc scanner with 48 lines per picture, 16 pictures per second. AT&T's Bell Telephone Laboratories transmitted half-tone images of transparencies in May 1925. But Bell Labs gave the most dramatic demonstration of television yet on April 7, 1927, when it field tested reflected-light television systems using small-scale (2 by 2.5 inches) and large-scale (24 by 30 inches) viewing screens over a wire link from Washington to New York City, and over-the-air broadcast from Whippany, New Jersey. The subjects, which included Secretary of Commerce Herbert Hoover, were illuminated by a flying spot beam and scanned by a 50-aperture disc at 16 pictures per second.

Electronic television

Herbert Hoover Although the discoveries of Nipkow, Rosing, Baird and others were extraordinary, little of their technology is used in modern television. By 1934, all electromechanical television systems were outmoded, although electromechanical broadcasts continued on some stations until 1939. A.A. Campbell-Swinton wrote a letter to Nature on the 18 June 1908 describing his concept of electronic television using the cathode ray tube, which had been invented in 1897 by the German physicist and Nobel prize winner Karl Ferdinand Braun. He proposed using an electron beam in both the camera and the receiver, which could be steered electronically to produce moving pictures. He lectured on the subject in 1911 and displayed circuit diagrams, but no one, including Swinton, knew how to realize the design. Although his system was never built, the cathode ray tube did come to be used to display images in almost all television sets and computer monitors until the invention of the LCD panel. A fully electronic system was first achieved by Philo Taylor Farnsworth on September 7, 1927, although the low-resolution, light-insensitive camera tube limited the image to a plate of glass painted black, with a straight line etched across it, rotated in front of a bright carbon arc lamp. Seven years later, on August 25, 1934, at the Franklin Institute in Philadelphia, Farnsworth gave the world's first public demonstration of a working, all-electronic television system, with 220 lines per picture, 30 pictures per second. Over a three week period, vaudeville acts, athletic and sports demonstrations, politicians, and hundreds of ordinary citizens were captured on Farnsworth's cameras in the open air and simultaneously shown on his receiving sets. Farnsworth, a Mormon farm boy from Rigby, Idaho, first envisioned his system at age 14. He discussed the idea with his high school chemistry teacher, who could think of no reason why it would not work (Farnsworth would later credit this teacher, Justin Tolman, as providing key insights into his invention). He continued to pursue the idea at Brigham Young Academy (now Brigham Young University). At age 21, he demonstrated a working system at his own laboratory in San Francisco. His breakthrough freed television from reliance on spinning discs and other mechanical parts. All modern picture tube televisions descend directly from his design. Vladimir Kosma Zworykin is also sometimes cited as the father of electronic television because of his invention of the iconoscope in 1923 and his invention of the kinescope in 1929. His design was one of the first to demonstrate a television system with all the features of modern picture tubes. His previous work with Rosing on electromechanical television gave him key insights into how to produce such a system, but his (and RCA's) claim to being its original inventor was largely invalidated by three facts: a) Zworykin's 1923 patent presented an incomplete design, incapable of working in its given form (it was not until 1933 that Zworykin achieved a working implementation), b) the 1923 patent application was not granted until 1938, and not until it had been seriously revised, and c) courts eventually found that RCA was in violation of the television design patented by Philo Taylor Farnsworth, whose lab Zworykin had visited while working on his designs for RCA. The controversy over whether it was first Farnsworth or Zworykin who invented modern television is still hotly debated today. Some of this debate stems from the fact that while Farnsworth appears to have gotten there first as an inventor, RCA brought television sets to market before Farnsworth, and it was RCA employees who first wrote the history of television. Even though Farnsworth eventually won the legal battle over this issue, he was never able to fully capitalize financially on his invention.

Color television

Most television researchers appreciated the value of color image transmission, with an early patent application in Russia in 1889 for a mechanically-scanned color system showing how early the importance of color was realized. John Logie Baird demonstrated the world's first color transmission on July 3, 1928, using scanning discs at the transmitting and receiving ends with three spirals of apertures, each spiral with filters of a different primary color; and three light sources at the receiving end, with a commutator to alternate their illumination. Color television in the United States had a protracted history due to conflicting technical systems vying for approval by the Federal Communications Commission for commercial use. Mechanically scanned color television was demonstrated by Bell Laboratories in June 1929 using three complete systems of photoelectric cells, amplifiers, glow-tubes, and color filters, with a series of mirrors to superimpose the red, green, and blue images into one full color image. In the electronically scanned era, the first color television demonstration was on February 5, 1940, when RCA privately showed to members of the FCC at the RCA plant in Camden, New Jersey, a television receiver producing images in color by a field sequential color system. CBS began non-broadcast color experiments using film as early as August 28, 1940, and live cameras by November 12. The CBS "field sequential" color system was partly mechanical, with a disc made of red, blue, and green filters spinning inside the television camera at 1,200 rpm, and a similar disc spinning in synchronization in front of the cathode ray tube inside the receiver set. RCA's later "dot sequential" color system had no moving parts, using a series of dichroic mirrors to separate and direct red, green, and blue light from the subject through three separate lenses into three scanning tubes, and electronic switching that allowed the tubes to send their signals in rotation, dot by dot. These signals were sorted by a second switching device in the receiver set and sent to red, green, and blue picture tubes, and combined by a second set of dichroic mirrors into a full color image. The first field test (i.e., broadcast) of color television was by NBC (owned by RCA) on February 20, 1941. CBS began daily color field tests on June 1, 1941. These color systems were not compatible with existing black and white television sets, and as no color television sets were available to the public at this time, viewership of the color field tests was limited to RCA and CBS engineers and the invited press. The War Production Board halted the manufacture of television and radio equipment for civilian use from April 1, 1942 to October 1, 1945, limiting any opportunity to introduce color television to the general public. The post-war development of color television was dominated by three systems competing for approval by the FCC as the U.S. color broadcasting standard: CBS's field sequential system, which was incompatible with existing black and white sets without an adaptor; RCA's dot sequential system, which in 1949 became compatible with existing black and white sets; and CTI's system (also incompatible with existing black and white sets), which used three camera lenses, behind which were color filters that produced red, green, and blue images side by side on a single scanning tube, and a receiver set that used lenses in front of the picture tube (which had sectors treated with different phosphorescent compounds to glow in red, green, or blue) to project these three side by side images into one combined picture on the viewing screen. After a series of hearings beginning in September 1949, the FCC found the RCA and CTI systems fraught with technical problems, inaccurate color reproduction, and expensive equipment, and so formally approved the CBS system as the U.S. color broadcasting standard on October 11 1950. An unsuccessful lawsuit by RCA delayed the world's first network color broadcast until June 25 1951, when a musical variety special titled simply Premiere was shown over a network of five east coast CBS affiliates. Viewership was again extremely limited: the program could not be seen on black and white sets, and Variety estimated that only thirty prototype color receivers were available in the New York area. Regular color broadcasts began that same week with the daytime series The World Is Yours and Modern Homemakers. While the CBS color broadcasting schedule gradually expanded to twelve hours per week (but never into prime time), and the color network expanded to eleven affiliates as far west as Chicago, its commercial success was doomed by the lack of color receivers necessary to watch the programs, the refusal of television manufacturers to create adaptor mechanisms for their existing black and white sets, and the unwillingness of advertisers to sponsor broadcasts seen by almost no one. In desperation, CBS bought a television manufacturer, and on September 20, 1951, production began on the first and only CBS color television model. But it was too little, too late. Only 200 sets had been shipped, and only 100 sold, when CBS pulled the plug on its color television system on October 20, 1951, and bought back all the CBS color sets it could to prevent law suits by disappointed customers. Starting before CBS color even got on the air, the U.S. television industry, represented by the National Television System Committee, worked in 1950-1953 to develop a color system that was compatible with existing black and white sets and would pass FCC quality standards, with RCA developing the hardware elements. When CBS testified before Congress in March 1953 that it had no further plans for its own color system, the path was open for the NTSC to submit its petition for FCC approval in July 1953, which was granted in December. The first publicly announced experimental TV broadcast of a program using the NTSC-RCA "compatible color" system was an episode of NBC's Kukla, Fran and Ollie on August 30, 1953. NBC made the first coast-to-coast color broadcast when it covered the Tournament of Roses Parade on January 1 1954, with public demonstrations given across the United States on prototype color receivers. A few days later Admiral brought out the first commercially made color television set using the RCA standards, followed in March by RCA's own model. Television's first prime time network color series was The Marriage, a situation comedy broadcast live by NBC in the summer of 1954. NBC's anthology series Ford Theatre became the first color filmed series that October. NBC was naturally at the forefront of color programming because its parent company RCA manufactured the most successful line of color sets in the 1950s. CBS and ABC, which were not affiliated with set manufacturers, and were not eager to promote their competitor's product, dragged their feet into color, with ABC delaying its first color series (The Flintstones and The Jetsons) until 1962. The Du Mont network, although it did have a television-manufacturing parent company, was in financial decline by 1954 and was dissolved two years later. Thus the relatively small amount of network color programming, combined with the high cost of color television sets, meant that as late as 1964 only 3.1 percent of television households in the U.S. had a color set. NBC provided the catalyst for rapid color expansion by announcing that its prime time schedule for fall 1965 would be almost entirely in color (the exception being I Dream of Jeannie). All three broadcast networks were airing full color prime time schedules by the 1966–67 broadcast season. But the number of color television sets sold in the U.S. did not exceed black and white sales until 1972, which was also the first year that more than fifty percent of television households in the U.S. had a color set. In Mexico, Guillermo González Camarena (1917–1965), invented the early color television transmission system. He received patents for color television systems in 1940 (U.S. Patent 1942 (2296019), 1960 and 1962. The 1942 patent was for a mechanically scanned color filter adapter for an existing monochrome electronic transmission system. In August 31, 1946 he sent his first color transmission from his lab in the offices of The Mexican League of Radio Experiments in Lucerna St. #1, in Mexico City. The video signal was transmitted at a frequency of 115 MHz. and the audio in the 40 metre band. European color television was developed somewhat later and was hindered by a continuing division on technical standards. Having decided to adopt a higher-definition 625-line system for monochrome transmissions, with a lower frame rate but with a higher overall bandwidth, Europeans could not directly adopt the U.S. color standard, which was widely perceived as wanting anyway, because of its tint control problems. There was also less urgency, since there were fewer commercial motivations, European television broadcasters being predominantly state-owned at the time. As a consequence, although work on various color encoding systems started already in the 1950s, with the first SECAM patent being registered in 1956, many years had passed till the first broadcasts actually started in 1967. Unsatisfied with the performance of NTSC and of initial SECAM implementations, the Germans unveiled PAL (phase alternating line) in 1963, staying closer to NTSC but borrowing some ideas from SECAM. The French continued with SECAM, notably involving Russians in the development. The first regular colour broadcasts in Europe were by BBC2 beginning on July 1, 1967, using PAL. Germans did their first broadcast in September (PAL), while the French in October (SECAM). PAL was eventually adopted by West Germany, the UK, Australia, New Zealand, much of Africa, Asia and South America, and most Western European countries except France. In addition to France and Luxembourg, SECAM was adopted by Soviet Union, much of Eastern Europe, much of Africa and of the Middle East. Both systems broadcast on UHF frequencies, the VHF being used for legacy black and white, 405 lines in UK or 819 lines in France, till the beginning of the eighties. It should be noted that some British television programmes, particularly those made by or for ITC Entertainment, were made in colour before the introduction of colour television to the UK, for the purpose of sales to US networks. The first British show to be made in colour was the drama series The Adventures of Sir Lancelot (1956-57), which was initially made in black and white but later shot in colour for sale to the NBC network in the United States. In Japan, NHK introduced color television in the year 1960.

Broadcast television

NHK The first regularly scheduled television service in the United States began on July 2, 1928. The Federal Radio Commission authorized C.F. Jenkins to broadcast from experimental station W3XK in a suburb of Washington, D.C. But for at least the first eighteen months, only silhouette images from motion picture film were broadcast due to the narrow 10kHz bandwidth allotted by the FRC. General Electric's experimental station in Schenectady, New York, on the air sporadically since January 13, 1928, was able to broadcast reflected-light, 48-line images via shortwave as far as Los Angeles, and by September was making four television broadcasts weekly. CBS's New York City station W2XAB began broadcasting the first regular seven days a week television schedule in the United States on July 21, 1931, with a 60-line electromechanical system. The first broadcast included Mayor Jimmy Walker, the Boswell Sisters, Kate Smith, and George Gershwin. The service ended in February 1933. By 1935, electromechanical television broadcasting had ceased in the United States except for a handful of stations run by public universities that continued to 1939. The Federal Communications Commission saw television in the continual flux of development with no consistent technical standards, hence all such stations in the U.S. were granted only experimental and not commercial licenses, hampering television's economic development. Just as importantly, Philo Farnsworth's 1934 demonstration of an all-electronic system pointed the direction of television's future. On June 15, 1936, Don Lee Broadcasting began a month-long demonstration of all-electronic television in Los Angeles on W6XAO (later KTSL) with a 300-line image from motion picture film. RCA demonstrated in New York City a 343-line electronic television broadcast, with live and film segments, to its licensees on July 7, 1936, and made its first public demonstration to the press on November 6. By April 1939, regularly scheduled 441-line electronic television broadcasts were available in New York City and Los Angeles, and by November on General Electric's station in Schenectady. With the adoption of NTSC television engineering standards in 1941, the FCC saw television ready for commercial licensing, with the first such licenses issued to NBC and CBS owned stations in New York on July 1, 1941, followed by Philco's station in Philadelphia. Electromechanical broadcasts began in Germany in 1929, but were without sound until 1934. Network electronic service started on March 22, 1935, on 180 lines using only telecine transmission of film or an intermediate film system. Live transmissions began on January 15, 1936. The Berlin Summer Olympic Games were televised, using both direct television and intermediate film cameras, to 28 public television rooms in Berlin and Hamburg in August 1936. The Germans had a 441-line system on the air in February 1937, and during World War II brought it to France, where they broadcast off the Eiffel Tower. The first British television broadcast was made by Baird Television's electromechanical system over the BBC radio transmitter in September 1929. Baird provided a limited amount of programming five days a week by 1930. On August 22, 1932, BBC launched its own regular service using Baird's 30-line electromechanical system, continuing until September 11, 1935. On November 2, 1936 the BBC began broadcasting a dual-system service, alternating on a weekly basis between Marconi-EMI's 405-line standard and Baird's improved 240-line standard, from Alexandra Palace in London, making the BBC the world's first regular high-definition television service. The corporation decided that Marconi-EMI's electronic picture gave the superior picture, and the Baird system was dropped in February 1937. The outbreak of the Second World War caused the BBC service to be suspended on September 1, 1939, resuming from Alexandra Palace on June 7, 1946. The Soviet Union began offering 30-line electromechanical test broadcasts in Moscow on October 31, 1931, and a commercially manufactured television set in 1932. The first experimental transmissions of electronic television took place in Moscow on March 9, 1937, using equipment manufactured and installed by RCA. Regular broadcasting began on December 31, 1938. The first regular television transmissions in Canada began in 1952 when the CBC put two stations on the air, one in Montreal, Quebec on September 6, and another in Toronto, Ontario two days later. two days later The first live transcontinental television broadcast took place in San Francisco, California from the Japanese Peace Treaty Conference on September 4, 1951. In 1958, the CBC completed the longest television network in the world, from Sydney, Nova Scotia to Victoria, British Columbia. Reportedly, the first continuous live broadcast of a breaking news story in the world was conducted by the CBC during the Springhill Mining Disaster which began on October 23 of that year. Programming is broadcast on television stations (sometimes called channels). At first, terrestrial broadcasting was the only way television could be distributed. Because bandwidth was limited, government regulation was normal. In the U.S., the Federal Communications Commission allowed stations to broadcast advertisements, but insisted on public service programming commitments as a requirement for a license. By contrast, the United Kingdom chose a different route, imposing a television licence fee on owners of television reception equipment, to fund the BBC, which had public service as part of its Royal Charter. Development of cable and satellite means of distribution in the 1970s pushed businessmen to target channels towards a certain audience, and enabled the rise of subscription-based television channels, such as HBO and Sky. Practically every country in the world now has developed at least one television channel. Television has grown up all over the world, enabling every country to share aspects of their culture and society with others. By the late 1980s, 98% of all homes in the U.S. had at least one TV set. On average, Americans watch four hours of television per day. An estimated two-thirds of Americans got most of their news about the world from TV, and nearly half got all of their news from TV. These figures are now estimated to be significantly higher.

Technology

Broadcasting

There are many means of distributing television broadcasts, including both analogue and digital versions of:
- Terrestrial television
- Stratovision (From aircraft flying in a loop)
- Satellite television
- Cable television
- MMDS (Wireless cable)

Receiving

Television sets

In television's electromechanical era, commercially made television sets were sold from 1928 to 1934 in the United Kingdom, United States, and Russia. The earliest commercially made sets sold by Baird in the U.K. and the U.S. in 1928 were radios with the addition of a television device consisting of a neon tube behind a mechanically spinning disk (the Nipkow disk) with a spiral of apertures that produced a red postage-stamp size image, enlarged to twice that size by a magnifying glass. The "televisor" was also available without the radio. The Baird televisor sold in 1930-1933 is considered the first mass-produced set, selling about a thousand units. The first commercially made electronic television sets with cathode ray tubes were manufactured by Telefunken in Germany in 1934, followed by other makers in Britain (1936) and America (1938). The cheapest of the pre-War World II factory-made American sets, a 1938 image-only model with a 3-inch (8 cm) screen, cost US$125, the equivalent of US$1,732 in 2005. The cheapest model with a 12-inch (30 cm) screen was $445 ($6,256). An estimated 19,000 electronic television sets were manufactured in Britain, and about 1,600 in Germany, before World War II. About 7,000-8,000 electronic sets were made in the U.S. before the War Production Board halted manufacture in April 1942, which resumed in October 1945. Television usage in the United States skyrocketed after World War II with the lifting of the manufacturing freeze, war-related technological advances, the gradual expansion of the television networks westward, the drop in set prices caused by mass production, increased leisure time, and additional disposable income. While only 0.5% of U.S. households had a television set in 1946, 55.7% had one in 1954, and 90% by 1962. In Britain, there were 15,000 television households in 1947, 1.4 million in 1952, and 15.1 million by 1968. For many years different countries used different technical standards. France initially adopted the German 441-line standard but later upgraded to 819 lines, which gave the highest picture definition of any analogue TV system, approximately four times the resolution of the British 405-line system. Eventually the whole of Europe switched to the 625-line PAL standard, once more following Germany's example. Meanwhile in North America the original NTSC 525-line standard from 1941 was retained. NTSC Television in its original form involves sending images and sound over radio waves in the VHF and UHF bands, which are received by a television set. Over-the-air broadcast television requires an antenna (aerial). This can be an outdoor Yagi antenna. In strong signal areas the antenna can be indoors, attached to or near the receiver, such as an adjustable dipole antenna called "rabbit ears" for the VHF band and a small loop antenna for the UHF band.

Specifications

Modern displays
Starting in the 1990s, modern television sets diverged into three different trends:
- standalone TV sets;
- integrated systems with DVD players and/or VHS VCR capabilities built into the TV set itself (mostly for small size TVs with up to 21" screen, the main idea is to have a complete portable system);
- component systems with separate big-screen video monitor, tuner, audio system which the owner connects the pieces together as a high-end home theater system. This approach appeals to videophiles who prefer components that can be upgraded separately. There are many kinds of video monitors used in modern TV sets. The most common are direct view CRTs for up to 40in (100cm) (in 4:3) and 46in (115cm) (in 16:9) diagonally; most big screen TVs (up to over 100 inch (254 cm)) use projection technology. Three types of projection systems are used in projection TVs: CRT-based, LCD-based, and DLP(reflective micromirror chip)-based. Modern advances have brought flat panels to TV that use active matrix LCD or plasma display technology. Flat panel LCDs and plasma displays are as little as 4in (10cm) thick and can be hung on a wall like a picture or put over a pedestal. They are multifunctional, because they are used like computer monitors too (VGA and DVI or HDMI connections). Some TVs integrate a pair of ports to connect computer cases and peripherals to it or to connect the set to an A/V home network (HAVI) (USB port for cord connection and BlueTooth/WiFi for wireless). Today, some LCD and Plasma sets have SD Card slots, so users can view pictures from a digital camera. On the new Panasonic LCDs and Plasmas (Viera), users have the capability to record onto SD card and then play it back on a hand-held PC or digital camera (anything that allows MPEG4). With SD cards now available with 1G of memory (soon 2GB, and Panasonic is also working on one that contains over 30GB of memory), a user can record over 1,000 minutes at low quality, and around 80 minutes on the highest quality. The playback of the recording is not brilliant, but these are the first generation. They will get better with time.
Signal connections
The number of ways to connect a video device to a television has increased over the years: WiFi
- HDMI - a compact 19 to 29 pin connector that carries digital video and digital audio signals. Essentially an enhanced version of DVI that includes digital audio. This is the most advanced form of connection currently available. DVI
- DVI - a 17 to 29 pin connector that carries digital video signals, designed to carry HDTV but also used in current DVD players and latest digital displays. Copy protection is available using HDCP. HDCP
- Component video - three separate RCA jacks (colored red, green and blue) carry three video signals, one brightness (luminance) and two colors (chromas), and is usually referred to as "Y, B-Y, R-Y", "Y Cr Cb" (interlaced) or "Y Pr Pb" (progressive), or YUV. Audio is not carried on this cable. This connection provides for picture quality superior to S-Video and is typically used in home theater for DVDs, satellite and analogue HDTV; less common in Europe but is starting to become more widely available. Europe
- SCART - a large 21 pin connector that may carry: one video signal composite video; or two video signals S-Video; or for picture quality similar to component video, three signals of separate red, green and blue or RGB; or for best picture quality, four video signals of separate red, green, blue and sync or RGBS; plus right and left line-level audio channels; along with a number of control signals including an aspect-ratio flag (e.g. widescreen). This system has been standard in Europe since mid-1980s for all consumer electronics, which meant that RGBS was available on even the earliest PAL DVD players and satellite receivers. Japan uses a 21 pin RGB connector which is visually similar to SCART but with different pin configurations. Japan
- S-Video - small round connector with two separate video signals, one carrying brightness (luminance), the other carrying color (chroma). Also referred to as Y/C video. Provides most of the benefit of component video, with slightly less color fidelity. Use started in the 1980s for S-VHS, Hi-8, and early NTSC DVD players to relay high quality video before component was available. Audio is not carried on this cable. Hi-8
- Composite video - The most common form of connecting external devices, putting all the video information into one signal. Most televisions provide this option with a yellow RCA jack. Audio is not carried on this cable, though two separate cables with similar red and white RCA jacks for right and left line-level audio are commonly bonded to composite video cables.
- Coaxial RF - All audio channels and picture components are transmitted through one coaxial cable and modulated on a radio frequency. Most TVs manufactured during the past 15–20 years accept coaxial connection, and the video is typically "tuned" on channel 3 or 4. This is the type of cable usually used for cable television. Most modern DVD players and other video devices no longer modulate RF output, so very old TV sets made before composite video jacks became commonplace will need a modulator.
Aspect ratios
Mechanically scanned television as first demonstrated by John Logie Baird in 1926 used a 7:3 vertical aspect ratio, oriented for the head and shoulders of a single person in close-up. Most of the early electronic TV systems from the mid-1930s onward shared the same aspect ratio of 4:3 which was chosen to match the Academy Ratio used in cinema films at the time. This ratio was also square enough to be conveniently viewed on round cathode-ray tubes (CRTs), which were all that could be produced given the manufacturing technology of the time. (Today's CRT technology allows the manufacture of much wider tubes, and the flat screen technologies which are becoming steadily more popular have no aspect ratio limitations at all.) The BBC's television service used a more squarish [http://tcc.members.beeb.net/tchistory.html 5:4] ratio from 1936 to circa 1949, when it too switched to a 4:3 ratio. In the 1950s, movie studios moved towards widescreen aspect ratios such as Cinerama in an effort to distance their product from television. Although this was initially just a gimmick widescreen is still the format of choice today and square aspect ratio movies are rare. Some people argued that widescreen is actually a disadvantage when showing objects that are tall instead of panoramic, others would say that natural vision is more panoramic than tall, and therefore widescreen is easier on the eye. The switch to digital television systems has been used as an opportunity to change the standard television picture format from the old ratio of 4:3 (approximately 1.33:1) to an aspect ratio of 16:9 (approximately 1.78:1). This enables TV to get closer to the aspect ratio of modern widescreen movies, which range from 1.78:1 through 1.85:1 to 2.35:1. There are two methods for transporting widescreen content, the better of which uses what is called anamorphic widescreen format. This format is very similar to the technique used to fit a widescreen movie frame inside a 1.33:1 35mm film frame. The image is squashed horizontally when recorded, then expanded again when played back. The anamorphic widescreen 16:9 format was first introduced via European PAL-Plus television broadcasts and then later on "widescreen" DVDs; the ATSC HDTV system uses straight widescreen format, no image squashing or expanding is used. Recently "widescreen" has spread from television to computing where both desktop and laptop computers are commonly equipped with widescreen displays, and it remains to be seen whether Work or movie enjoyment will take over. There are some complaints about distortions of movie picture ratio due to some DVD playback software not taking account of aspect ratios; but this will subside as the DVD playback software matures. Furthermore, computer and laptop widescreen displays are in the 16:10 aspect ratio both physically in size and in pixel counts, and not in 16:9 of consumer televisions, leading to further complexity. This was a result of widescreen computer display engineers' uninformed assumption that people viewing 16:9 content on their computer would prefer that an area of the screen be reserved for playback controls or subtitles, as opposed to viewing content full-screen.
Aspect ratio incompatibility
The television industry changing aspect ratios is not without teething difficulties, and can present a considerable problem. Displaying a widescreen aspect (rectangular) image on a conventional aspect (square) display can be shown:
- in "letterbox" format, with black horizontal bars at the top and bottom
- with part of the image being cropped, usually the extreme left and right of the image being cut off (or in "pan and scan", parts selected by an operator)
- with the image horizontally compressed A conventional aspect (square) image on a widescreen aspect (rectangular) display can be shown:
- in "pillarbox" format, with black vertical bars to the left and right
- with upper and lower portions of the image cut off
- with the image horizontally distorted A common compromise is to shoot or create material at an aspect ratio of 14:9, and to lose some image at each side for 4:3 presentation, and some image at top and bottom for 16:9 presentation. Horizontal expansion has advantages in situations in which several people are watching the same set, as it compensates for watching at an oblique angle.
Sound
Television add-ons
Today there are many add-ons for the television set. A few add-ons include Video Game Consoles, VCRs, Cable Boxes, Satellite Boxes, DVD players, or Digital Video Recorders, the television add-on market is ever growing.

New developments


- Broadcast flag
- CableCARD™
- Digital Light Processing (DLP)
- Digital Rights Management (DRM)
- Digital television (DTV)
- Digital Video Recorders
- Direct Broadcast Satellite TV (DBS)
- DVD
- Flicker-free (100Hz)
- High Definition TV (HDTV)
- High-Definition Multimedia Interface (HDMI)
- IPTV
- Internet television
- LCD and Plasma display Flat Screen TV
- Pay Per View
- Picture-in-picture (PiP)
- Video on-demand (VOD)
- Ultra High Definition Video (UHDV)
- Web TV

Geographical usage

Content

Advertising

Since their inception in the USA in 1941, TV commercials have become one of the most effective, most pervasive, and most popular methods of selling products of many sorts, especially consumer goods. U.S. advertising rates are determined primarily by Nielsen ratings. The exception to this is the publicly-funded British Broadcasting Corporation.

Programming

Getting TV programming shown to the public can happen in many different ways. After production the next step is to market and deliver the product to whatever markets are open to using it. This typically happens on two levels: #Original Run or First Run - a producer creates a program of one or multiple episodes and shows it on a station or network which has either paid for the production itself or to which a license has been granted by the producers to do the same. #Syndication - this is the terminology rather broadly used to describe secondary programming usages (beyond original run). It includes secondary runs in the country of first issue, but also international usa