Matt Stephens is impressed by David O’Doherty’s cycling knowledge, and in particular, his obsession with the racing bikes of the late 1980’s that’s led him to own a collection so big he now operates on a ‘one in one out’ basis. David is famous for being one of the most successful Irish stand up comedians of all time, with a host of awards and appearances on QI, 8 Out Of 10 Cats Does Countdown, Never Mind the Buzzcocks, Would I Lie To You, and the upcoming series of Celebrity Bake Off. But given his chosen subject on Celebrity Mastermind was The First 100 Years of The Tour De France, surely he’ll ace the hometown quiz?