The British television series Dragon's Den moved from BBC Two to BBC One in 2009.
The programme began on BBC Two in 2005 and later received a higher-profile BBC One slot as its audience and cultural impact grew. The move reflected the show's established popularity and its importance within the BBC's factual-entertainment schedule.
Dragon's Den remained a business-pitch programme after the channel change. Entrepreneurs continued to present proposals to investors in return for equity, while the production retained the tense negotiation style that had defined the earlier BBC Two episodes.
This date is easy to confuse with changes in the investor panel or with the launch of overseas versions. It identifies the channel transition of the British series itself. The programme's original home was BBC Two, and BBC One became its broadcast home from 2009.