Though john Logie – aird started selling television sets in 1930, Germany gets the credit for creating the first device to send pictures through a wire in 1884.
In 1884 Paul Gottlieb Nipkow, a 23-year-old university student in Germany, patented the first electromechanical television system which produced 4000 pixels per second that took on the shape of a picture made of 18 parallel lines
The television camera tube, called the iconoscope tube was made by ValdimirZworykin in 1923.He improvised it and made the kinescope in 1929.
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.
In England Baird had developed the know –how of transmitting moving pictures in 1925.He sent a moving image from London to New york in 1928.
On 2 November 1936 the BBC began transmitting the world's first public regular high-definition service from the Victorian Alexandra Palace in north London. It therefore claims to be the birthplace of television broadcasting as we know it today.
The magnitude of television popularity can be gauged from the fact that 70million television sets were sold in USA in 1950.
By 1951 AT& T mad it possible for telecasting companies to reach their signals to the entire country.
The company completed this feat by laying the coaxial cable and establishing the microwave relay network through out the country.
History of Television in India
Terrestrial television in India started with the experimental telecast starting in Delhi on 15 September 1959 with a small transmitter and a makeshift studio.
The regular daily transmission started in 1965 as a part of All India Radio. The television service was extended to Bombay (now Mumbai) and Amritsar in 1972.
Up until 1975, only seven Indian cities had a television service and Doordarshan