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image dissector – Farnsworth’s television vacuum tube iconoscope – Zworykin’s television vacuum tube persistence of vision – retina’s capacity to retain an image briefly, allowing the brain to fill in the gaps between successive images. streaming – downloading video and audio from the web in advance of playing radio with pictures – simplistic definition of TV coaxial cable – heavy-duty landline for video signals optical fiber cable – high-capacity glass filament for video signals DBS – direct-broadcast satellite with transmission from orbit to receiver Digital Satellite Service – pioneer DBS company Northpoint – company that uses DBS frequencies to broadcast television signals from terrestrial transmitters interactive television – a television-web hybrid that allows viewers to send and receive web messages on television sets ABC television – American Broadcasting Company, built from ABC radio network CBS television – Columbia Broadcasting System, built from CBS radio network under William Paley NBC television – National Broadcast Company, built from NBC radio network under David Sarnoff Big Three – ABC, CBS, and NBC microwave relays – towers re-angle over-air signals to match earth’s curvature General Electric – current NBC owner United Paramount Theatres – strengthened ABC after 1953 merger CapCities Communications – owner of ABC before purchase by Disney Dumont network – 1950-1958 Fox – launched in 1986 WB Television Network – new network launched by Warner Brothers in for over-air affiliates UPN – new network Paramount launched in 1995 for over-air affiliates CATV – short for Community Antenna Television, an early name for cable systems HBO – short for Home Box Office, first cable programming via satellite pay-per-view – cable companies charge subscribers for each program they watch superstation – over-air station available by satellite to local cable systems CNN – short for Cable News Network, first 24-hour TV news network pilot – prototype show for a series syndicators – independent program producers and distributors standards and practices – network offices to review programs for suitability magazine – usually investigative news program with three or four unrelated segments Carnegie Commission – recommended upgrading noncommercial broadcast system public TV – post-Carnegie term for noncommercial TV ETV – educational TV, early term for noncommercial TV CPB – Corporation for Public Broadcasting, funnels federal money to public broadcast system PBS – Public Broadcasting System, national TV network for noncommercial television stations NPR – National Public Radio, a national network for noncommercial radio stations Children’s Television Workshop – created Sesame Street Nielson overnights – quick television ratings on network programs the night before People’s Awards – based on viewer balloting Emmy Awards – selected by members of the Academy of Television Arts and Sciences to recognize excellence
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