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German inventor Paul Nipkow developed a rotating disc technology to transmit pictures over wire in 1884 called the Nipkow disk. Nipkow is credited with discovering television's scanning principle, in which the light intensities of small portions of an image are successively analyzed and transmitted
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Early inventors attempted to either build a mechanical television system based on the technology of Paul Nipkow's rotating disks or they tried to build an electronic television system using a cathode ray tube developed independently in 1907 by English inventor A.A. Because electronic television systems worked better, they eventually replaced mechanical systems.
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Charles Jenkins invented a mechanical television system called radiovision and claimed to have transmitted the earliest moving silhouette images on June 14, 1923
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John Logie Baird invents the mechanical television, demonstrating the first working television system on 26 January 1926
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Russian inventor Vladimir Zworykin invented an improved cathode-ray tube called the kinescope in 1929. At the time, the kinescope tube was sorely needed for television and Zworykin was one of the first to demonstrate a television system with all the features of modern picture tubes.
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Louis Parker invented the modern changeable television receiver. The patent was issued to Louis Parker in 1948. Parker's "intercarrier sound system" is now used in all television receivers in the world.
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A successful color television system began commercial broadcasting, first authorized by the FCC on December 17, 1953, based on a system invented by RCA
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Television content for the World Wide Web was rolled out in 1995. The first TV series made available on the internet was the public access program Rox
