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The History Of Television Few inventions have had as much effect on contemporary American society as television Before 1947 the number of US homes with television sets could be measured in the thousands By the late 1990s 98 percent of US homes had at least one television set and those sets were on for an average of more than seven hours a day The typical American spends from two-and-a-half to almost five hours a day watching television It is significant not only that this time is being spent with television but that it is not being spent engaging in other activities such as reading or going out or socializing The first actually television success was in San Francisco California on September 7 1927 Philo Taylor Fansworth a 21-year-old inventor who lived in a house without electricity till he was 14 designed this system When Farnsworth was still in high school he developed a system that could capture moving images then convert them to radio waves and then transformed into a picture on a screen The first successful television transmissions occurred between 1928 and 1935 Because the pictures in this system were composed of only 30 lines small details could not be reproduced This system was known as a low definition system Several hundred lines are needed to give definition comparable to 35 mm film The BBC introduced the first high definition system in 1936 This system consisted of 405 lines In 1964 they introduced a second high definition set This was a 625-line system that was better suited to many other broadcasting authorities so it enabled an even higher picture resolution than before Rca the company who owned the two dominating radio networks invested 50 million dollars in the development of electronic television In 1939 RCA televised the opening of the New York World Fair Durring that opening ceremony president Franklin D Roosevelt made a speech making him the first president to
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