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  Cable Television. The History of Cable TV Cable television, formerly known as Community Antenna Television or CATV, was born in the mountains of Pennsylvania in the late 1940's.    

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Satellite and Cable TelevisionSatellite and Cable Television - Cable and satellite television broadcasting overview, information and facts...


Cable Television. The History of Cable TV Cable television, formerly known as Community Antenna Television or CATV, was born in the mountains of Pennsylvania in the late 1940's.

 

Cable Television

Cable television or Community Antenna Television (CATV) (and often shortened to 'cable') refers to television, FM radio programming and other services that are provided to consumers via fixed coaxial cables, rather than by the older and more widespread radio broadcasting (over-the-air) method.

Cable Television (Click to enlarge)

It is most common in Canada, the United States, Europe, most of Australasia and much of eastern Asia, though it is present in many other countries.

Technically, both cable TV and CATV involve distributing a number of television channels collected at a central location (called a head end or headend) to subscribers within a community by means of a network of optical fibers and/or coaxial cables and broadband amplifiers.

Like in the case of radio broadcasting, the use of different frequencies allows many channels to be distributed through the same cable, without separate wires for each. The tuner of the TV, VCR or radio selects from this mixed signal one channel.

The same program is often simultaneously radio broadcast and distributed by cable, usually at different frequencies. Other programs may be distributed by cable only; rules restricting content (e.g. regarding nudity and pornography) are often more relaxed for cable than for over-the-air TV.

 


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