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There were many, many people involved as the technology evolved from an opto-mechanical device to one entirely electronic from the 1870s through the 1920s.

In 1925, John Logie Baird made the world's first working television system with a demonstration of his "Televisor" system in London. It was this same system that was put into operation by the BBC in 1929 when they began public television broadcasts for the first time.

Meanwhile, Philo Farnsworth in America demonstrated the first fully electronic system in 1929. It used electronic scanning of both the pickup and display devices.

The early inventors were in Europe and the later ones worked in the USA.

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14y ago

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