When did the first UK episode of BBC Dragons' Den air?

The first UK episode of BBC Dragons' Den aired on 4 January 2005.

The British programme brought entrepreneurs before a panel of investors, known as dragons, to seek funding for their businesses. Contestants typically present a proposal, answer questions about sales and valuations, and negotiate over equity.

The launch established the UK version as part of an international television format. Its panel and presenter have changed over time, but the central pitch-and-negotiate structure has remained consistent. The first series featured original investors including Peter Jones, Duncan Bannatyne, Rachel Elnaugh, Simon Woodroffe and Doug Richard.

A common mix-up is confusing the British premiere with the dates of later international adaptations. Dragons' Den is based on a Japanese format, and versions have subsequently appeared in many countries. The UK programme has also continued across numerous series, so the first broadcast date is distinct from the date of any particular dragon's arrival.