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The A.C. Nielsen company, which continues to measure television ratings today, took over American radio's ratings beginning with the 1949–50 radio season and ending in 1955–56. [40] During this era, nearly all of radio's most popular programs were broadcast on one of three networks: NBC Red, NBC Blue, or CBS' Columbia network.
The Audience Appreciation Index (AI) is an indicator measured from 0 to 100 of the public's appreciation for a television or radio programme, or broadcast service, in the United Kingdom. Until 2002, the AI of a programme was calculated by the Broadcasters' Audience Research Board (BARB), the organisation that compiles television ratings for the ...
The Canadian rating system for English-language broadcasters (as well as third-language broadcasters, which broadcast in a language other than English or French) is as follows: [13] [10] Exempt – Programming that is exempt from ratings (such as news and sports programming) will not display an on-screen rating at all.
Also AM radio or AM. Used interchangeably with kilohertz (kHz) and medium wave. A modulation technique used in electronic communication where the amplitude (signal strength) of the wave is varied in proportion to that of the message signal. Developed in the early 1900s, this technique is most commonly used for transmitting an audio signal via a radio wave measured in kilohertz (kHz). See AM ...
Nielsen Media Research (NMR) is an American firm that measures media audiences, including television, radio, theatre, films (via the AMC Theatres MAP program), and newspapers. Headquartered in New York City, it is best known for the Nielsen ratings , an audience measurement system of television viewership that for years has been the deciding ...
Nielsen Audio (formerly Arbitron) is a consumer research company in the United States that collects listener data on radio broadcasting audiences. It was founded as the American Research Bureau by Jim Seiler in 1949 and became national by merging with Los Angeles-based Coffin, Cooper, and Clay in the early 1950s. [2]
50Languages, formerly Book2, is a set of webpages, downloadable audio files, mobile apps and books for learning any of 56 languages. Explanations are also available in the same 56 languages. Explanations are also available in the same 56 languages.
NHK World Radio Japan (RJ) is the international radio arm of NHK. It broadcasts a weekly lineup of news, current affairs, cultural, and educative radio program focusing on Japan and Asia, for a daily total of 65 hours of broadcasts. Radio Japan provides two main feeds: The General Service broadcasts worldwide in Japanese and English.