BBC Two first broadcast Dragons' Den in 2005.
The British version launched as a business reality programme in which entrepreneurs pitch for investment from wealthy businesspeople, known as the Dragons. BBC Two was the programme's original home, establishing the series before it later became strongly associated with BBC One.
The format was adapted from the Japanese television programme Money Tigers. Although the programme is often discussed alongside BBC One entertainment shows, its early British run began on BBC Two. This distinction matters because the channel is part of the show's broadcast history, not the name of its production company or format origin.
The programme's title also differs by territory: several international versions use Shark Tank, while the UK retains the Dragons' Den name. The British series has continued through many changes to its investor panel and presenter lineup.