It is one of the most important means of communication. The word television’ means ‘far sight’. It is derived from the Greek word televsion which means ‘far, and a Latin word vision which means ‘sight’.
Televisions bring pictures and sounds to homes from around the world. These images are relayed by communication satellites in the form of radio waves. Televsion sets have aerials that receive the waves and change them into moving pictures and sounds.
Web TV
Web TV technology was invented in 1996. The first web TV sets were produced by Diba In and Zenith Electronics. Web TV is commonly used to access the Internet through televsion
sets. It provides a set top box that connects to the televsion and the telephone line. The web TV network was bought by Microsoft in 1997
Vladímír Kozmích Zworykin
Vladimir Kozmich was a Russian-American inventor. He was a pioneer of televsion
technology. In 1923, he invented the iconoscope, which was a tube for televsion transmission. He invented the cathode ray tube, called the kinescope, in 1929. The kinescope is used for transmission in televisions. Zworykin was also instrumental in the development of charge ge-type tubes, infrared image tubes, and the
electron microscope
John Logie Baird 

John Logie Baird was a Scottish engineer and entrepreneur. He was the first to conceive the
idea of electronic televsion. Using a mechanical televsion, Baird carried out the first transmission of objects in motion in 1924. He held his first public demonstration of televsion in London in televsion in 1928. Baird’s of the image of a human history of broadcasting March 1925. He also demonstrated the first colour trans-Atlantic transmission face in 1928 is an important milestone in the History  The British Broadcasting Company (BBC) started broadcasting televsion on the Baird 30-line system in 1929.
Philo Taylor Farnsworth
Philo Taylor Farnsworth is generally acknowledged as the father of electronic televsion. He conceived the idea of television at the age of 14. He is the inventor of the first complete electronic televsion system. He was the first person to make a working electronic
image pickup device or the video camera tube and to transmit sign images using cathode ray tubes in 1927.
Liquid crystal display (LCD)

Liquid crystal display (LCD) televisions use LCD technology for their visual output. LCD televisions are low-power flat-panel display televisions made up of liquid crystals. There are various types of LCD televisions. Some LCDs can also be used as computer monitors
LCD televsion.

High-definition television
High-definition televsion (HDTV) is a digital television broadcasting system. It has a high
resolution and is broadcast digitally. It was introduced in the 1990s in the United States.
Internet protocol televsion Internet protocol televsion (IPTV) uses Internet protocol over a network infrastructure. It does not use cables or traditional broadcast formats but the
viewer receives it through the computer network infrastructure.

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