History of television Television (TV) is a widely used telecommunication medium for transmitting and receiving moving images, either monochromatic ("black and white") or color, usually accompanied by sound. The word is derived from mixed Latin and Greek roots, meaning "far sight": Greek tele, far, and Latin visio, sight.

History of television In its early stages of development, television employed a combination of optical, mechanical and electronic technologies to capture, transmit and display a visual image. By the late 1920s, however, those employing only optical and electronic technologies were being explored. All modern television systems rely on the latter, although the knowledge gained from the work on mechanical-dependent systems was crucial in the development of fully electronic television.

John Logie Baird - Mechanical TV

History of television In 1927, Philo Farnsworth made the world's first working television system with electronic scanning of both the pickup and display devices, which he first demonstrated to the press on 1 September 1928.

History of television The first practical use of television was in Germany. Regular television broadcasts began in Germany in 1929 and in 1936 the Olympic Games in Berlin were broadcast to television stations in Berlin and Leipzig where the public could view the games live.

History of television American Television Set British Television Set

History of television French Television SetBrazilian Television Set

History of television Czechoslovakian Television Set

Advertising Television broad reach makes it a powerful and attractive medium for advertisers. Many television networks and stations sell blocks of broadcast time to advertisers ("sponsors") in order to fund their programming.

Advertising in the United States Since inception in the U.S. in 1940, TV commercials have become one of the most effective, persuasive, and popular method of selling products of many sorts, especially consumer goods. U.S. advertising rates are determined primarily by Nielsen Ratings. The time of the day and popularity of the channel determine how much a television commercial can cost.

How much does a thirty second block of commercial time cost? How much does a thirty second block of commercial time cost?

$750,000 $3 million

Advertising in the United States Some TV programs also weave advertisements into their shows; the practice begun in film and became known as product placement. For example, a character could be drinking a certain kind of soda, going to a particular chain restaurant, or driving a certain make of car.

Commercials

Commercials: McDonald‘s: Most expensive ad: Worst ad: Big ad: Bobika: