The Dragons share their thoughts about how the strength of an idea is the key to unlocking cash in the Den. With a look at eccentric inventor Mark Champkins, from 2007.
Released: Jan 01, 1970
Runtime: 00:60:14 minutes
Genre: Documentary
Stars: Peter Jones, Duncan Bannatyne, Theo Paphitis, Richard Bacon, Deborah Meaden, Hilary Devey