The British TV programme Dragons' Den first aired on BBC Two in 2005.
The series premiered on 4 January 2005, adapting an established business-pitch format for a UK audience. Entrepreneurs present products or companies to wealthy investors, known as dragons, and seek funding in exchange for an ownership stake.
BBC Two was the programme's original home and helped establish it as a long-running factual-entertainment series. The show later became associated with the BBC's broader factual and entertainment output, while its format was adapted in several other countries.
A common mix-up is confusing the British programme with Shark Tank, the US adaptation of the same broad investment-pitch concept. Dragons' Den is the title used in the UK and several other territories, whereas Shark Tank is the better-known US title. The British programme's original broadcast identity is therefore specifically BBC Two, not a commercial network.