Television: History of Technology. 1880s: Paul Nipkow experiments with mechanical disk television; leads to 1926: John Logie Baird (U.K) invents first practical television. 1927: Simultaneous development of electronic television by Farnsworth (scanning process)
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1880s: Paul Nipkow experiments with mechanical disk television; leads to
1926: John Logie Baird (U.K) invents first practical television.
1927: Simultaneous development of electronic television by Farnsworth (scanning process)
and Zworykin (cathode ray tube).
Philo Farnsworth, Fort Wayne Resident, 1939-mid 1940s
Farnsworth House on East State Boulevard
1941: National Television Systems Committee adopts 525-line resolution for U.S. broadcast television. This standard is only now being replaced by Digital Television (DTV) and High Definition Television (HDTV).
1948-1952: FCC freezes new station licenses.
1952: The “freeze” ends and the two band system adopted: Very High Frequency (VHF), from 2-13 and Ultra High Frequency (UHF) 14-83, later reduced to 14-70.
NOTE: The FM band was assigned in the gap between VHF channel 6 and channel 7.
1. Television replaces radio as the national mass medium: programming, celebrities, and use of leisure time.
2. Influence of Sylvester “Pat” Weaver (NBC): spot advertising replaces sponsorship, daypart programming (Today and Tonight shows), and “specials.”
3. The establishment of the three commercial networks (stable until mid-1980s).
4. Quiz show scandals: The end of innocence
5. Influence of Desi Arnez: filming live television series to enable reruns.
1. The dominance of television news: the Kennedy assassination, the space race, the civil rights struggles, and the Vietnam War.
2. The dominance of television entertainment: mostly situation comedies and dramatic series.
3. By 1966, network television coverts totally to color (Last monochrome network television series was The Avengers).
4. The mini-series (1970s): Rich Man, Poor Man and Roots
Ratings and Shares:
The cost of advertising time is based mostly on the rating and share of that time slot (generated by the program):
Rating = % of Total Television Homes (TT) (This figure will always be less the 100% total for the time slot: not everyone has a tv set on)
Share = % of Homes Using Television (HUT) (This figure must total 100% for all programs in the time slot)