Exam 2 Flashcards
Period of major spurt in TV technology
1919-1939; Between WWI & WWII
Vladimere Zworkyn
iconoscope tube - breaking up TV picture
kinescope tub - higher fidelity pictures
When was the kinescope demonstrated?
1929
Philo Farnsworth
- The dissector tube - breaking up/resembling pictures
- Produced 1st all electronic TV
- 1st to transmit TV image
Interlaced Scanning
TV screen illuminates all the odd lines first (1,3,5,7), then starts the process over again in a matter of 1 millisecond
Progressive Scanning
TV screen illuminates all the lines in a progressive order (1,2,3,4,5)
First image transmitted on TV by Farnsworth
”$”
When and where did TV make it’s formal debut? Which company?
April 30, 1939, The World’s Fair (NYC), RCA
When did TV become full operational in the U.S.?
Late 1940s
The first TV commercial was broadcast on what network, who was the client, and how much did they pay?
NBC, Bullova, $9
When did the Federal Communications Commission (FCC) begin, with what act?
Communications Act of 1934 - provide the regulation of interstate and foreign communication by wire or radio and for other purposes
-combined and organized federal regulation of telephone, telegraph and radio communications
5 reasons for delayed start of TV
- The depression
- A lack of investment capital
- WWII
- A lack of TV standards
- lack of receivers hampered acceptance
Radio Manufacturers Association (RMA) standard
RCA announced plans to setup production or receivers
What was the NTSC standard?
National Television Systems Commitee, an advisory group for the industry and for the FCC
What was the main problem with the NTSC standard?
Didn’t work for color TV
How many channels did the FCC set aside following WWII?
12
VHF
Very High Frequency allocation, made possible the operation of 405 TV stations across the country
UHF
Ulta High Frequency, 70 new channels in addition to VHF
The FCC “Freeze”
1948-1952, The broadcast license demand outnumbered the availability
The Sixth Order Report
- 70 new channels were allocated in the Ultra High Frequency (UHF) band.
- Channels for 242 stations allocated for non-commercial educational TV.
- *Mandated a single, uniform television station class, (providing for some differences in transmission power & antenna heights)
- Regulated power of each stations transmitter, the theory was to help UHF stations maintain an even playing field with the VHF
All Channels Receiver Bill
1962, the FCC passes bill to require all future television sets be equipped with UHF and VHF capability
Color systems adopted by the FCC
1950 - Authorized CBS’s color television technology as the national standard (Zworkyn’s failed)
1953 – FCC approved RCA’s color system. compatible with black and white TV
Why was color TV production halted?
The Korean War
First color coverage of the World Series
Sept. 28th, 1955
Bonanza begins in color
Sept. 12, 1959
This TV show was the turning point for color TV set purchases, and when…
September 1961, Disney’s Wonderful World of Color
First network to convert all of their shows to color, and when?
NBC. My Birthday! 1966
What year did color TV set sales outpace B&W
1972
The 1st color film
The World, The Flesh, and the Devil
First Michigan station to being color broadcasting
WOOD-TV, Grand Rapids
What are the channel allocations for VHF
2-13
What are the channel allocations for UHF
14-69
What was channel 1 used for?
Amateur radio stations and other uses