#list_of_united_states_over-the-air_television_networks
List of United States over-the-air television networks
In the United States, for most of the history of broadcasting, there were only three or four major commercial national terrestrial networks. From 1946 to 1956, these were ABC, CBS, NBC and DuMont. From 1956 to 1986, the "Big Three" national commercial networks were ABC, CBS, and NBC. From 1954 to 1970, National Educational Television was the national clearinghouse for public TV programming; the Public Broadcasting Service (PBS) succeeded it in 1970.
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List of United States over-the-air television networks List of United States pay television channels List of television stations in North America by media market Television news in the United States Big Three (American television) List of television networks in the United States Lists of television stations in the United States Terrestrial television Cable television in the United States High-definition television in the United States
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