In common usage, the term talk show is used to refer to any form of dialog-driven programming. This format ranges from highly structured interviews to spontaneous conversations in informal settings. These conversations are usually anchored by a presenter, while the guests may include professional experts, politicians, and even ordinary citizens. Guests share their views about topic(s) debated.

Probably the most important element of the talk show formula is the host, who gives a brand identity to the product and serves as a liaison with producers, advertisers, and syndicators. Format is generally consistent with minor changes depending on the host. This entry provides an overview of talk shows, including its major subgenres, transnational adaptations, and critiques and theories related to this media format.