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Analog TV Broadcasting
While televisions were in existence as early as the 1920's, the first television broadcast did not occur until 1936 in London. By 1945, there were less than 7000 TV sets in U.S. homes, and only nine television stations. While these analog sets left something to be desired - they usually took several minutes to warm up and all broadcasts were in black and white - it was certainly an exciting improvement over radio programming. Interestingly though, analog television broadcasting is transmitted in much the same method as radio broadcasts.