March 2017
Beginner
338 pages
13h 5m
English
Television commercials are television messages designed to sell:
A public service announcement, or PSA (public service bulletin [PSB] in the United Kingdom), is similar to a commercial but is produced for:
PSAs are usually dedicated to improving or serving organizations involved in education, health, welfare, safety, and so on. In the United States, commercial television stations are required by federal communications law to provide service to the community, and airing PSAs is considered a form of community service. Stations usually use their inventory of unsold air time ...
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