Television set

Television set

A Television set (usually called a Television or TV set or simply just TV) is 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, United States, and Russia. 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.

The first commercially made electronic televisions with cathode ray tubes were manufactured by Telefunken in Germany in 1934, followed by other makers in France (1936), Britain (1936), and America (1938). 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).

An estimated 19,000 electronic televisios 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. before the War Production Board halted manufacture in April 1942, production resuming in August 1945.

Television usage in the United States skyrocketed after World War II with the lifting of the manufacturing freeze, war-related technological advances, the gradual expansion of the television networks westward, the drop in television prices caused by mass production, increased leisure time, and additional disposable income. While only 0.5% of U.S. households had a television in 1946, 55.7% had one in 1954, and 90% by 1962. In Britain, there were 15,000 television households in 1947, 1.4 million in 1952, and 15.1 million by 1968.


Modern televisions consist of a display, antenna or radio frequency (RF) input (usually an F connector), and most significantly a television tuner which distinguishes it from a monitor which receives signals that are already processed. Additionally TVs almost always include speakers. Most TVs also feature many additional inputs for devices such as DVD players, video game consoles, and headphones; the most common types are RCA (for composite and component video), mini-DIN (for S-Video), HDMI, and SCART and D-terminal can be found in Europe and Japan respectively. Some high-end TVs have Ethernet ports to receive information from the Internet, like stocks, weather, or news. Most TVs made since the early 1980s also feature an infrared sensor in order to detect the signals sent by remote controls.

Display Technologies

Televisions today use various display technology such as CRT, LCD, Plasma, DLP, and more recently OLED. Some front projectors, which feature TV tuners, can also be considered televisions.

See also


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