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A look back over the highs and lows experienced by the hundreds of entrepreneurs who have entered the Den over the last nine series, examining the key ingredients required for a successful pitch.
Heated
Wallace & Gromit's World of Invention
Faster! Humanity's Quest to Save Time
David Jason's Great British Inventions
The Genius of Invention
Help! I Bought It at Auction with Sarah Beeny
Histoire des Inventions
History's Greatest Machines with Dolph Lundgren
The Big Life Fix
The Game Plan with Shaquille O'Neal
Modern Marvels
James May's 20th Century
RISING
Japan's Top Inventions
The Secret Life of Machines
The Re-Inventors
The Mega-Brands That Built America
Tate Confidential
