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Television set



 
 
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
Video monitor

A video monitor also called a broadcast monitor, broadcast reference monitor or just reference monitor, is a device similar to a television, used to monitor the output of a video-generating device, such as a media playout Server , IRD, video camera, VCR, or DVD player....
, which are unable to independently tune into over-the-air broadcasts.

a class="link1" onMouseover='showByLink("m2216352",this)' onMouseout='hide("m2216352")'href="http://www.absoluteastronomy.com/topics/History_of_television">television's electromechanical era
History of television

The history of television is both complex and far-reaching, involving the work of many inventors and engineers in several countries over many decades....
, commercially made televisions were sold from 1928 to 1934 in the United Kingdom, United States, and Russia.






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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
Video monitor

A video monitor also called a broadcast monitor, broadcast reference monitor or just reference monitor, is a device similar to a television, used to monitor the output of a video-generating device, such as a media playout Server , IRD, video camera, VCR, or DVD player....
, which are unable to independently tune into over-the-air broadcasts.

History

Braun Hf 1
In television's electromechanical era
History of television

The history of television is both complex and far-reaching, involving the work of many inventors and engineers in several countries over many decades....
, 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
Neon

Neon is the chemical element that has the symbol Ne and atomic number 10. Although a very common element in the universe, it is rare on Earth....
 tube behind a mechanically spinning disk (the Nipkow disk
Nipkow disk

A Nipkow disk , also known as scanning disk, is a mechanical, geometrically operating device, invented by Paul Gottlieb Nipkow. This scanning disk was a fundamental component in mechanical television through the 1920s....
) 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 tube
Cathode ray tube

The cathode ray tube is a vacuum tube containing an electron gun and a fluorescent screen, with internal or external means to accelerate and deflect the electron beam, used to create images in the form of light emitted from the fluorescent screen....
s were manufactured by Telefunken
Telefunken

Telefunken is a Germany radio and television company, founded in 1903, in Berlin, as a joint venture of two large companies, Siemens & Halske and the AEG....
 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$125, the equivalent of US$
United States dollar

The United States dollar is the unit of currency of the United States and was defined by the Coinage Act of 1792 to be between 371 and 416 grains of silver ....
1,863 in 2007. The cheapest model with a 12-inch (30 cm) screen was $445 ($6,633).

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. before the War Production Board
War Production Board

The War Production Board was established as a government agency on January 16, 1942 by executive order of Franklin D. Roosevelt. The purpose of the board was to regulate the production and allocation of materials and fuel during World War II in the United States....
 halted manufacture in April 1942, production resuming in August 1945.

Television usage in the United States skyrocketed after World War II
World War II

World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
 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.

Beginning 2009, Philips
Philips

Koninklijke Philips Electronics N.V. , usually known as Philips, is a Netherlands electronics company. It is one of the largest electronics companies in the world, founded and headquartered in the Netherlands....
 announced a 21:9 screen aspect ratio
Aspect ratio

The aspect ratio of a shape is the ratio of its longer dimension to its shorter dimension. It may be applied to two characteristic dimensions of a three-dimensional shape, such as the ratio of the longest and shortest axis, or for symmetrical objects that are described by just two measurements, such as the length and diameter of a rod....
 television set.

Components