The UK version of Dragon's Den originally broadcast on BBC Two.
BBC Two has traditionally carried factual, documentary and specialist programming alongside entertainment, making it a natural home for a programme focused on entrepreneurs, business plans and investment negotiations. Dragon's Den later became a major BBC brand while retaining its association with the channel.
The programme's BBC identity distinguishes it from overseas adaptations. In the United States, the related format became Shark Tank, while other countries retained names based on dragons or translated versions of the original concept.
Viewers can sometimes confuse BBC Two with BBC One because Dragon's Den became widely popular and received prominent promotion. The question concerns the channel that originally transmitted the British programme, rather than any later repeat, streaming service or related international version.