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A television set (usually called a television, TV set, or simply TV) is a device used to view television broadcasts, not to be confused with monitors, which are unable to independently tune into over-the-air broadcasts. In television's electromechanical era, commercially made televisions were sold from 1928 to 1934 in the United Kingdom,[1] United States, and Russia.[2] The earliest commercially made televisions sold by Baird in the UK in 1928 were radios with the addition of a television device consisting of a neon tube behind a mechanically spinning disk (the Nipkow disk) with a spiral of apertures that produced a red postage-stamp size image, enlarged to twice that size by a magnifying glass. The Baird "Televisor" was also available without the radio. The Televisor sold in 1930–1933 is considered the first mass-produced television, selling about a thousand units.[3] The first commercially made electronic televisions with cathode ray tubes were manufactured by Telefunken in Germany in 1934,[4][5] followed by other makers in France (1936),[6] Britain (1936),[7] and America (1938).[8][9] The cheapest of the pre-World War II factory-made American sets, a 1938 image-only model with a 3-inch (8 cm) screen, cost US$125, the equivalent of US$1,863 in 2007. The cheapest model with a 12-inch (30 cm) screen was $445 ($6,633).[10] An estimated 19,000 electronic televisions were manufactured in Britain, and about 1,600 in Germany, before World War II. About 7,000–8,000 electronic sets were made in the U.S.[11] before the War Production Board halted manufacture in April 1942, production resuming in August 1945.
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