Television History

American inventor Charles Francis Jenkins developed mechanical television systems in

he 1920s and early 1930s.

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in 1956 In June, the TV remote controller first entered the American home. The first TV remote control called

"Lazy Bones," was developed in 1950 by Zenith Electronics Corporation (then known as Zenith Radio Corporation).

Mechanical TV usually only produced small images. It was the main type of TV until

.until the 1930s.

Farnsworth's system was first used for broadcasting in

1936,

The last mechanical television broadcasts ended in

1939 at stations run by a handful of public universities in the United States.

Louis Parker invented the modern changeable television receiverhe modern changeable television receiver in

1948.

The first successful color television system began commercial broadcasting on

December 17, 1953 based on a system designed by RCA.

Analog broadcast television in the United States ended in June in favor of

Digital terrestrial television (DTV) or digital-only broadcasting.

The very first prototype for a plasma display monitor was invented by

Donald Bitzer, Gene Slottow, and Robert Willson.

All-electronic television, was first demonstrated in

September 1927 in San Francisco by Philo Farnsworth, and then publicly by Farnsworth at the Franklin Institute in Philadelphia in 1934, was rapidly overtaking mechanical television.

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T.V. history

he beginnings of mechanical television can be traced back to the discovery of the photoconductivity of the element selenium by

Willoughby Smith in 1873

in 1956 Marvin Middlemark invented "rabbit ears", the "V" shaped TV antennae. Among Middlemark's other inventions were

a water-powered potato peeler and rejuvenating tennis ball machine.

German scientist, Karl Braun invented the

cathode ray tube oscilloscope (CRT) in 1897.

In 1939,RCA paid Farnsworth $1 million for his patents after ten years of litigation, and RCA began

demonstrating all-electronic television at the 1939 World's Fair in New York City.

Also called televisor, the mechanical was a broadcast television system that used mechanical or electromechanical methods to scan, transmit and reproduce an image, which were usually transmitted how

electronically and via radio waves.

Russian inventor, Vladimir Zworykin invented an improved cathode-ray tube called the

kinescope in 1929.

The first LCD TVs were introduced. At the same time, high-end televisions started to have 3-line digital comb filters. In addition, composite video and S-video inputs began appearing to support devices

like video games and VCRs.

Television history reveals two distinctive paths of innovation which are

mechanical and electronical

n 1923, Jenkins transmitted the first moving silhouette images, and on June 13, 1925 publicly demonstrated

synchronized transmission of images and sound. Over 400 patents were issued to Jenkins, including 75 devoted to mechanical television alone.

the invention of a scanning disk by German technician Paul Gottlieb Nipkow in 1884 and Scotish engineer John Logie Baird's demonstrated

televised moving images in 1926.

As electronic camera and display tubes were perfected, the initial electromechanical television gave way to all-electronic TV system in nearly all applications beginning with the end of

the 1930s

Electronic television is based on the development of

the cathode ray tube, which is the picture tube found in modern TV sets.