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Network TV Glossary


An office for gathering or distributing news. Similar terms are used for specialized bureaus, often to indicate geographic location or scope of coverage: a Tokyo bureau refers to a given news operation’s office in Tokyo. Foreign bureau is a generic term for a news office set up in a country other than the primary operations center. A Washington bureau is an office in the capital that covers news related to national politics and government in the United States.

Prime time

The hours on weekdays between 8 p.m. and 11 p.m., in which the average audience is measured by Nielsen. On Sundays, the prime-time hours are 7 p.m. to 11 p.m.


A percentage measure of total households or population owning TVs who are tuned to a particular program or station at a specific time (e.g., a six rating for women 18-49 means 6 percent of all women 18-49 in the defined geographic area were viewing that station or program), according to the Television Advertising Bureau.


The Television Advertising Bureau defines share as the percent of households (household share) or persons (P2+ share) using television who are tuned to a specific program, network or station at a specific time.


Collectively, the viewers of a television program.



  • Chris Bury, a 30-year ABC News veteran and Nightline became a correspondent for ABC’s World News and Good Morning America, but remains a reporter at Nightline, too. Longtime producer Jon Banner also left Nightline for a communications position at PepsiCo.2
  • Correspondent Sharyn Alfonsi left ABC News to be a contributor to Showtime’s 60 Minutes Sports in January 2013. She had been a correspondent and anchor for CBS News before leaving for ABC in 2008. CBS News’ 60 Minutes co-produces 60 Minutes Sports.3
  • 20/20 co-anchor Chris Cuomo left the network in January 2013 to join CNN for a role in a new morning show. He will also anchor and report on major events for the CNN. David Muir replaced Cuomo as co-anchor of 20/20, joining Elizabeth Vargas at the anchor desk.
  • In February 2013, Susan Saulny joined the Washington bureau of ABC News. She came from The New York Times where she worked for 12 years.




  1. Ariens, Chris. “Yunji de Nies Leaves ABC News.” TV Newser. June 4, 2012.
  2. Lowry, Brian. “ABC Dumbs Down News, Reaps Rewards.” Variety. Aug. 22, 2012.
  3. Weprin, Alex. “ABC News Correspondent Sharyn Alfonsi Joining ’60 Minutes Sports.’” TV Newser. Jan. 14, 2013.
  4. Ariens, Chris. “Margaret Brennan Joining CBS News.” TV Newser. June 4, 2012.
  5. Weprin, Alex. “’60 Minutes Vet Michael Radutzky Named EP of Creative Development at CBS News.” TV Newswer. Oct. 8, 2012.
  6. Ariens, Chris. “Amy Robach Leaving ‘Today’ Show and NBC News.” TV Newser. May 19, 2012.
  7. Stelter, Brian. “Willie Geist to Co-Host Third Hour of ‘Today.’” The New York Times. Sept. 24, 2012.
  8. Stelter, Brian. “Erica Hill, Formerly of CBS’s Morning Show, to Join ‘Weekend Today.’” The New York Times. Nov. 1, 2012.
  9. Stelter, Brian. “NBC Peppered by Online Critics in Shuffle of Hosts.” The New York Times. Nov. 4, 2012.
  10. Stelter, Brian. “Erica Hill, Formerly of CBS’s Morning Show, to Join ‘Weekend Today.’” The New York Times. Nov. 1, 2012.
  11. Stelter, Brian. “NBC News Names New ‘Rock Center’ Producer.” The New York Times. Oct. 9, 2012.