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Baird spent many years working on electronic transmission of television. His first public demonstration of television was in 1925.

His system, called "The Televisor" was put into commercial use by the BBC in England in 1929. The system was electro-mechanical, using a rotating disc to create the image. Although this now sounds like a very cumbersome method, it remained in use until the middle of the 1930s when the BBC changed to a fully electronic system.

By the time the BBC began broadcasting black and white television, Baird had already demonstrated a color version. Although it was a fully operational system, it never saw commercial service.

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12y ago

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