We all love a good quiz. So here's a question - when did ordinary contestants turn into the pro-quizzers of today? Giving the answers are Victoria Coren Mitchell, Judith Keppel, Chris Tarrant, Mark Labbett, Nicholas Parsons and many more. Narrated by Ben Miller.

Are You an Egghead? was a BBC quiz show presented by Dermot Murnaghan. It was a spin off from the quiz show Eggheads, with its goal to find a further Egghead to complement the existing team. The first series was aired weekdays from 20 October to 2 December 2008 and was won by Barry Simmons. The second and final series was aired from 12 October to 23 November 2009 and was won by Pat Gibson.

A look at the impact of television on British culture.