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John Logie Baird (August 13, 1888 - June 14, 1946) was a Scottish engineer and inventor of the world's first working television system in Hastings, England in 1923. An official blue plaque marks the house where this took place. Hastings Museum hold various pieces of related correspondence. A further demonstration subsequently took place in a department store, Selfridges, in London England, by Mr Baird himself. This took place in 1925. The system was successful enough to become commercialised, and the BBC began the world's first regular television broadcasts, using the Baird system, In 1927, Baird transmitted a long-distance television signal over 438 miles (705 km) of telephone line between London and Glasgow; Baird transmitted the world's first long-distance television pictures to the Central Hotel at Glasgow Central Station. He then set up the Baird Television Development Company Ltd, which in 1928 made the first transatlantic television transmission, from London to Hartsdale, New York.

An all-electronic moving-image television system somewhat similar to that used today was invented and demonstrated in 1929 by Philo Farnsworth. Designs and patents for electro-mechanical television systems had been proposed as early as 1884 by German student Paul Gottlieb Nipkow but never built; and a workable version of a static image television system (what we would now call a "scanner") was demonstrated in 1909 by French scientists Fornier and Rignoux. Various scanner-quality devices were developed over the next 20 years, culminating in Farnsworth's 1929 triumph of moving-image television.

While there were a number of experimental TV systems in operation during 1929-1946, true commercial television broadcasting was delayed by the difficulty of developing a sensitive enough TV camera tube, and by the onset of World War II. In 1946, scientists at the laboratories of the Radio Corporation of America (RCA) developed the Image Orthocon Tube, which finally made broadcast-quality TV cameras possible.

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