DOC: The Documentary Channel is a digital cable television channel
that airs documentary programming. It features documentaries from
around the world, including those never-before-seen in the United States
and tends to focus on programming from independent filmmakers.
DOC launched in January 2006, is independently owned and operated, and is currently available via Dish Network. DOC is headquartered in Nashville, Tennessee, and has offices in New York City and Los Angeles.
DOC was founded by Oscar nominated and Emmy winning documentarian Tom Neff. The television channel won its first Emmy award, for Outstanding Documentary, in September, 2007, for Shake Hands with the Devil: The Journey of Roméo Dallaire.

The History Channel is a satellite and cable TV channel, devoted mainly to historical events and persons—often with observations and explanations by noted historians as well as reenactors and interviews with witnesses. Some of the original programming is also shown on History Television in Canada.

The Biography Channel (or simply bio) is an American digital cable television channel owned by A&E and based on the television series of the same name. A version of the channel also airs on ONO and Telefonica in Spain and on Sky Digital and cable television in the United Kingdom , a version of the channel also broadcasts in Canada owned by Rogers Media. It is a digital cable, category 1 television channel in Canada . It also has a version in Australia which soon will change its name to simply Bio. In 2007 a German and a Latinamerican version of the Biography Channel were launched. Biography Channel began programming in 1999. In addition to biographical shows, the network has been airing fictional, non-biographical programming previously seen on A&E, including Murder, She Wrote and The Adventures of Sherlock Holmes, though midway 2007 Biography canceled Sunday Afternoon mysteries, which included Midsomer Murders, Poirot, and The Adventures of Sherlock Holmes. This has outraged loyal fans of these mysteries. There are many requests to bring the shows back on Biography's discussion forums.
As of August 2006, the Biography Channel became the exclusive home for the Biography series, which was also dropped by A&E.
On Monday, July 16, 2007, the Biography Channel unveiled a new logo, a new tagline ("True Story") and revamped its on-air look and feel. Although the channel will refer to itself as Bio in much of its branding, the Biography Channel name is still in use as a subheading within the channel logo and for other network business.