Dragon's Den first premiered on BBC Two in January 2005.
The British programme is a business reality series in which entrepreneurs seek investment by presenting their companies to a panel of wealthy investors. Its format was adapted from the Japanese programme Money Tigers and became one of the BBC's best-known factual-entertainment shows.
BBC Two has traditionally carried factual, documentary and specialist programming, making it the original home of the series. The programme's later success led to repeats, specials and international adaptations, but its launch channel remains BBC Two. BBC One, BBC Three and BBC Four are separate BBC television channels, not the channel on which the programme began.