Jeremy Paxman asks the questions in the Christmas-themed quiz for distinguished university alumni.In the fourth match of the Christmas series, Christ's College, Cambridge, with broadcaster Natalie Haynes and news correspondent James Reynolds, fights it out against the team from the University of Essex with Antiques Roadshow expert Rupert Maas and Radio 5 Live broadcaster Dotun Adebayo. Both teams are playing for a place in the semi-finals.