1922: Charles Francis Jenkins' first public demonstration of television principles. A set of static photographic pictures is transmitted from Washington, D.C. to the Navy station NOF in Anacostia by telephone wire, and then wirelessly back to Washington; Philo Farnsworth first describes an image dissector tube, which uses cesium to produce images electronically. Farnsworth will not produce a working model until 1927.
1923: Charles Jenkins first demonstrates "true" television with moving images. This time 48-line moving silhouette images are transmitted at 16 frames per second from Washington to Anacostia Navy station; Vladimir Zworykin applies for a patent for an all-electronic television system, the first ancestor of the electric scanning television camera. The patent is not granted until 1938 after significant revisions and patent interference actions.
1924: John Logie Baird demonstrates a semi-mechanical television system with the transmission of moving silhouette images in England; Vladimir Zworykin files a patent application for the kinescope, a television picture receiver tube.
1925: John Logie Baird performs the first public demonstration of his "televisor" at the Selfridgesdepartment store on London's Oxford Street; Charles Francis Jenkins achieves the first synchronized transmission of a moving silhouette (shadowgraphs) and sound, using 48 lines, and a mechanical system; Vladimir Zworykin applies for a patent for color television; Zworykin first demonstrates his electric camera tube and receiver for Westinghouse corporation executives, transmitting the still image of an "X"; John Baird achieves the first live television image with tone graduations (not silhouette or duotone images) in his laboratory. Baird brings office boy William Taynton in front of the camera to become the first face televised.
1926: John Logie Baird demonstrates the world's first television system to transmit live moving images with tone graduations, to 40 members of the Royal Institution.
1927: The BBC begins broadcasting as the British Broadcasting Corporation under the Royal Charter.
1928: John Logie Baird's Television Development Company demonstrates their model A, B, and C 'televisors' to the general public.
1929: John Logie Baird begins broadcasting 30-minute-long programmes for his mechanically scanned televisions.
1932: The BBC starts a regular public television broadcasting service in the UK.
1933: The first television revue, Looking In, is broadcast on the BBC. The musical revue featured the Paramount Astoria dancing girls. Broadcast live by the BBC using John Logie Baird's 30-line mechanical television system, part of this performance was recorded onto a 7" aluminum disc using a primitive home recording process called Silvatone. This footage, which runs to just under four minutes, is the oldest surviving recording of broadcast television.
1934: First broadcast of The Three Stooges;Philo Farnsworth demonstrates a non-mechanical television system. The agreement for joint experimental transmissions by the BBC and John Logie Baird's company comes to an end. First 30 Line Mechanical Television Test Transmissions commence in April in Brisbane Australia conducted by Thomas Elliott and Dr. Val McDowall.
1941: First television advertisements aired. The first official, paid television advertisement was broadcast in the United States on July 1, 1941, over New York station WNBT (now WNBC) before a baseball game between the Brooklyn Dodgers and the Philadelphia Phillies. The announcement was for Bulova watches.
1942: FCC terminates all American television broadcasting because of the war; DuMont petitions FCC to resume broadcasting and receives approval.
1943: Hänsel und Gretel is the first complete opera to be broadcast on television, but only in New York; first (experimental) telecast of Charles Dickens's A Christmas Carol. Many more telecasts of the story will follow in later years, but until film begins to be used on television, no two of the television versions of the story will have the same casts. An advertisement campaign about forest fires introduces Smokey Bear
This article includes a television-related list of lists.
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