Many different men can claim to have invented various versions of the first television set.
Paul Nipkow. In 1884, the German Nipkow patented a "spinning-disk image rasterizer" which remained the prime model for later electromechanical TV sets until nearly 1940. Nipkow, however, never built a working set.
Constantin Perskyi. He is credited for originating the term "television" at the Paris World Fair in 1900, mentioning Nipkow in his treatise.
Georges Rignoux and A. Rournier. The two Frenchmen were the first to display an "instantaneous transmission" of still images in 1909.
Boris Rosing. He designed a TV system transmitting with a mirror-drum scanner images over wires.
John Logie Baird. Baird was the first to display images in motion in London in 1925. Baird later gave "the world's first demonstration of a working television system" in London in 1926. Baird laid claim to other firsts in TV development. Using telephone line extending more than 400 miles, Baird broadcast a signal between London and Glasgow, Scotland in 1927. A year later, Baird transmitted the first transatlantic signal (London to New York); he also experimented in color and created a video disk recorder. Baird also had a hand in the first TV broadcast service in both Germany and France.
Charles Francis Jenkins. Utilizing a "lensed disk scanner with a 48-line resolution," Jenkins broadcast the image of a windmill in motion between a Maryland radio station to his lab in Washington, D. C.
Other early TV pioneers included Herbert Ives and Frank Gray of Bell Telephone Labs; Leon Theremin of the Soviet Union; and Kenjiro Takayanagi of Japan.