Thumbnail sketch: Philo T. Farnsworth was living on a farm in Rigby Idaho in 1921 when he figured out how to bounce electrons back and forth in a vacuum tube. In 1927 he demonstrated the 'proof of concept' in a lab in San Fransisco. In 1930 he obtained the critical patents for the art that made television possible, He fought with RCA over those patents through the rest of the 1930s, finally becoming the first outside inventor to win patent litigation against RCA in 1939.
YouTube STARTED HERE IN 1927!
This video is recreation of the first all-electronic television picture. The first picture was transmitted from one room to another in San Francisco on Sept 7, 1927. The event was recreated for the 50th Anniversary in 1977.