Call in show

A talk show or chat show is a television programming or radio programming genre in which one person (or group of people) discusses various topics put forth by a talk show host.

Usually, guests consist of a group of people who are learned or who have great experience in relation to whatever issue is being discussed on the show for that episode. Other times, a single guest discusses their work or area of expertise with a host or co-hosts. A call-in show takes live phone calls from callers listening at home, in their cars, etc. Sometimes, guests are already seated but are often introduced and enter from backstage. There have been many notable talk show hosts; in many cases, the shows have made their hosts famous.

There are several major formats of talk shows. Generally, each subgenre predominates during a specific programming block during the broadcast day.

These formats are not absolute. Syndicated "daytime" shows may appear overnight in some markets, and some afternoon programs have similar structures to late night talk shows.

These formats may vary across different countries or markets. Late night talk shows are especially significant in the United States. Breakfast television is a staple of British television. The daytime talk format has become popular in Latin America as well as the United States.

Talk-radio host Howard Stern also hosted a talk show that was syndicated nationally in the USA, then moved to satellite radio's Sirius. The tabloid talk show genre, pioneered by Phil Donahue but popularized by Oprah Winfrey was extremely popular during the last two decades of the 20th century.

Politics are hardly the only subject of American talk shows, however. Other radio talk show subjects include Car Talk hosted by NPR and Coast to Coast AM hosted by Art Bell and George Noory which discusses topics of the paranormal, conspiracy theories, fringe science and the just plain weird. Sports talk shows are also very popular ranging from high-budget shows like The Best Damn Sports Show Period to Max Kellerman's original public-access television cable TV show Max on Boxing.

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