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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 has 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.

Within the industry, a tiering is sometimes created between groups of networks based on whether their programming is simultaneously originated from a central point, and whether the network master control has the technical and administrative capability to take over the programming of their afilliates in real-time when it deems this necessary -- the most common example being breaking national news events. This is commonly the case for the 3 traditional US broadcast networks, ABC, NBC, and CBS, and may be true of the 3 newer networks, FOX, UPN, and The WB, though much (if not all) of their programming is sent to them in advance of airing via satelliteFor other uses, please see Satellite (disambiguation A satellite is an object that orbits another object (known as its primary . The term is often used to describe an artificial satellite (as opposed to natural satellites, or moons). Because all objects e wild-feed s.

Broadcast television networks:

1 Argentina

2 Australia

List of Australian television channelsAustralian television channels include two government owned national networks, three major commercial capital city networks, several regional commercial networks and independent stations that are generally affiliates of the major networks, and a handful o

3 Brazil



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