Walliams set for 24-hour quiz show

David Walliams is to spend 24-hours hosting a quiz show for Comic Relief.

The British funnyman - who famously swam the English Channel in 2006 and led a team of celebrity cyclists on a non-stop Land's End to John O Groats relay to raise money for the 2010 Sport Relief campaign - will both present and take part in comedy quiz show '24 Hour Panel People'.