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Radio and TV sets are to be found in virtually all the homes of the developed countries. In domocracies a large measure of political freedom is allowed, so that programmes are usually independent, balanced, and not necessarily pro-government. In terms of general education, therefore, radio and television rank alongside books as valuable tools. A general education must incorporate a good knownledge of the world we live in. In serious broadcasting, programmes are planned to cover a wide range of topics from wild life to medical matters to space exploration, plus a host of others. Many countries provide programmes specifically aimed at schools, for examination purposes, and at senior students who wish to obtain external qualifications.
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