Television network

A television network is a distribution network for television content
whereby a central operation provides programming for many television
stations. Until the mid-1980s, television programming in the United States
was dominated by a small number of broadcast networks, but with the advent
of cable television the cost of creating a television network has been
reduced and there have been a huge increase in the number of networks with
most of the newer networks catering to a small group. Many early television
networks evolved from earlier radio networks.

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