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It is an innovative service that represents the first significant evolution in television technology since color television in the 1950s. [135] Digital TV's roots have been tied very closely to the availability of inexpensive, high-performance computers. It wasn't until the 1990s that digital TV became a real possibility. [136]
The decade of the 1970s saw significant changes in television programming in both the United Kingdom and the United States.The trends included the decline of the "family sitcoms" and rural-oriented programs to more socially contemporary shows and "young, hip and urban" sitcoms in the United States and the permanent establishment of colour television in the United Kingdom.
Projection television has been commercially available since the 1970s, but at that time could not match the image sharpness of the CRT. A variation is a video projector, using similar technology, which projects onto a screen. This is often referred to as "front projection".
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.
It is an innovative service that represents the most significant evolution in television broadcast technology since color television emerged in the 1950s. [143] Digital television's roots have been tied very closely to the availability of inexpensive, high performance computers. It was not until the 1990s that digital television became possible ...
Early television evolved from the network organization of radio in the early 1940s. Three of the four networks that rose to dominance, NBC, CBS, and ABC, were corporations that were based in the business center of New York City; the fourth was the Mutual Broadcasting System, a cooperative of radio stations that, though its member stations entered television individually, never had a ...
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Over the course of the 1960s and 1970s, concurrent with the development of color television, the evolution of television led to an event colloquially known as the rural purge; [86] genres such as the panel game show, western, variety show, barn dance and rural-oriented sitcom all met their demise in favor of newer, more modern series targeted ...