Prior to its 2008 purchase by Lions Gate Entertainment and subsequent conversion into a general entertainment channel (eventually leading to its rebranding as Pop in January 2015), the TV Guide Network – along with featuring listings for upcoming programs – functioned essentially as a barker channel with film and program descriptions.
During its years as Prevue Guide/Channel, it served as a barker channel outright, incorporating video program promotions and short-form film trailers at the top half of the screen.
In its Prevue incarnation, the channel operated a sister barker service, Sneak Prevue, which provided information on pay-per-view programming along with ordering information, which utilized a commercial form of the consumer LaserDisc format for each provider to run video and purchase content airing over the channel; the service operated until 2002 (three years after its parent network evolved into the TV Guide Channel), as a result of the rise in in-house barker channels operated by pay-per-view services to promote their content.
An example of a barker channel is the NBA League Pass Preview Channel, which is used to advertise and promote the NBA League Pass out-of-market sports package available to digital cable and satellite systems.
In some occasions, the barker method is used on radio stations, looping 30 to 60 second messages leading to a pending format change, a process called "stunting".