Exeter v Magdalen, Oxford University Challenge, Christmas 2015 Episode 5 of 10 Jeremy Paxman asks the questions in the Christmas-themed quiz for distinguished university alumni. In the Exeter University team are wildlife presenter Nick Baker and actor Barnaby Edwards, who plays a Dalek in Doctor Who. They fight it out for a place in the semis against Magdalen College, Oxford, featuring documentary filmmaker Louis Theroux and writer Matt Ridley.