On what date did the British TV show Dragons' Den first premiere on BBC Two?

The British TV show Dragons' Den first premiered on BBC Two on 4 January 2005.

The programme brought entrepreneurs before wealthy investors, known as Dragons, to seek investment for their businesses. Contestants present their ideas, answer questions about sales and finances, and negotiate over equity. The format combines business pitching with entertainment and has become one of the BBC's best-known factual entertainment programmes.

Dragons' Den was not originally created in Britain. It is the UK adaptation of the Japanese format Money Tigers, which was developed by Nippon Television. The British version helped establish the word “Dragon” as the show's familiar term for an investor.

The premiere date is sometimes confused with the dates when individual Dragons joined or left the panel. Those changes happened across later series, while the programme itself began broadcasting in January 2005.