Dragons' Den first premiered in the United Kingdom on BBC Two.
The British series began broadcasting in 2005 and placed entrepreneurs in front of a panel of investors seeking a deal. BBC Two was traditionally associated with factual, documentary, arts and specialist programming, making it the original home of the business-pitch show.
The programme later became one of the BBC’s best-known formats and attracted a broad audience beyond viewers interested in business. Its central structure has remained consistent: a founder makes a pitch, the dragons ask questions, and each investor decides whether to offer money for part of the company.
BBC One is a frequent wrong answer because it is the BBC’s main general-entertainment channel. BBC Three and BBC Four are also BBC channels, but neither was the original broadcast home of Dragons' Den. The question refers specifically to the British version, not an international adaptation.