Definition of television broadcast via satellite: a television service for which the signal is relayed via satellite to be broadcast to customers who have appropriate receiving equipment (Wiki)
Experiments in TV broadcasting started in the U.S.A. in the twenties of this century. But the available equipment did not scan the picture effectively. In the next five years came certain inventions, like the picture tube, electronics camera and TV sets. They made it possible for NBC (National Broadcasting Co.) in the thirties to set up a TV station in New York. BBC too started a TV station in London.
Satellite revolutionized TV broadcasting from 1962. In that year appeared the first satellite called the Early Bird. In 1965 came Intelsat, a big international communication system. Another such system, Inter-sputnik, was added in 1971. Today, more than 125 countries have their earth stations linked to satellites. Thirty five satellite systems have brought the people and nations of the world much nearer. In the seventies, computer technology made possible a 2-way communication between the transmitting stations' and receiving households. Then came audio visual cassettes and the video tape recorder and player. They were followed by closed-circuit TV, cable TV, pay-phone TV and now Direct Broadcasting System (DBS). In DBS roadcasting, you do not need even a receiving station. Programs can be transmitted direct to the TV sets.
The latest broadcasting technology has not yet reached several Third World countries in Asia, Africa and Latin America. There is a gap between the rich and the poor countries in this respect. That is why U.N. observed 1983 as the World Communications Year, to narrow down this gap. Innovations in technology has simply revolutionized the world with TV as a prime mass medium.
The Second world War halted the expansion of TV. But immediately after the war, TV broadcasting started expanding in the U.S.A. and other Western countries. By 1948, there were 48 TV stations in 25 cities and two million TV sets in the U.S.A. Within 10 years, 512 stations were sending programs to 5 crore sets. Canada, Japan and European countries were also making brisk progress.
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