The British television show Dragon's Den first introduced its investment Dragons in 2005.
The BBC launched the UK edition in January 2005, bringing the international Money Tigers format to British audiences. Entrepreneurs were invited to present business ideas and request investment from a panel of established businesspeople in exchange for equity.
The first panel included Peter Jones, Duncan Bannatyne, Rachel Elnaugh, Doug Richard and Simon Woodroffe. Later series replaced or added investors, which is why the lineup associated with the programme has changed considerably over time.
The year is sometimes confused with the debut dates of other versions. The US programme Shark Tank premiered in 2009, while the Japanese format on which both shows are based began earlier. The answer 2005 refers specifically to the first British broadcast, not the creation of the global format or the launch of an overseas adaptation.