Television
Julius Plücker - 1859
Sir William Crooks
Crooks tube
Beam pulled up by magnet
Karl Braun - 1897
Braun’s cathode ray tube
G. R. Carey – 1875
Shelford Bidwell – 1881
Maurice leBlanc
Paul Nipkow – 1884
Mechanical TV - 1884
Boris Rosing First to use a cathode ray tube as a receiver for a mechanically scanned image
Archibald Campbell-Swinton First to suggest using cathode ray tubes for both sending and receiving images
1911 – A. Sinding-Larsen suggested using radio instead of wires as a carrier of picture signals We now have all the concepts for what we think of as “modern television” And then World War I happened
Charles Francis Jenkins
John Baird / first TV face
Vladimir Zworykin
Icononscope – the camera
Kinescope – the receiver
Cathode ray tube
Philo Farnsworth
Farnsworth won the lawsuit against Zworykin and RCA over who invented the kinescope and the iconoscope. Thus, he’s known as “the father of television.”
RCA now had to pay Farnsworth royalties to license his patents Sarnoff said of RCA that it was determined “to collect patent royalties, not pay them.”
Date of demonstration 1930 1931 1933 1936 1939 1941 No. of picture lines 60 lines 120 lines 240 lines 343 lines 441 lines 525 lines
Felix the Cat image – 1929, 1937
FDR opening 1939 World’s Fair
Television started broadcasting in 1939 World War II brought everything to a halt
Post-war RCA 630 set RCA gave the plans to other companies Set sales skyrocketed: In 1946 – 6,000 In 1952 – 21,782,000
Began broadcasting again in 1946 as basically “radio with pictures”
Radio with pictures
TV essentially stole radio’s programming – dramas, comedies, variety shows, talk shows, game shows, sports, news. All programming was done live.
The Ruggles / Mama/ Mr. Peepers
Milton Berle Sid Caesar
Lucille Ball and Desi Arnaz
The death of live shows
CBS’ field sequential color wheel
CRT action
RCA color TV – 1954
Shut up!