A television network is a network to provide television programming to many television stations. It is almost always a large company. Until the mid-1980s, television programming in most countries of the world was mainly done by a small number of broadcast networks. Many early television networks (for example, the BBC, NBC or CBS) began as radio networks.
A television network may broadcast many television channels. For example, BBC is a television network. It broadcasts its programs on many different channels including BBC One, BBC Two, BBC Parliament and CBBC. Each channel will often have a group of programs that are similar in some way. For example, CBBC broadcasts children programs
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The DuMont Television Network in 1949. DuMont's network of stations stretched from Boston to St. Louis. These stations were linked together via AT&T's coaxial cable feed, allowing the network to broadcast live television programming to all the stations at the same time. Stations not yet connected received kinescope recordings via physical delivery.
Television network Facts for Kids. Kiddle Encyclopedia.