In the industrialized democratic world, broadcasting news monopolies and oligopolies have all but disappeared. Whereas public broadcasters in Western Europe in the earlier postwar period had a monopoly or duopoly on televised news, today there is a more diverse market with competition from other public and commercial broadcasters, often carried by new technology such as satellites. In the United States, the oligopoly of the three networks in news has been broken by both CNN on cable and, to a lesser extent, PBS in its program “News Hour.” Thus the new competition introduced into broadcasting systems has been the result of either changed government policy or new technological mediums, or in certain instances both.

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