St Catherine's, Oxford v Peterhouse, Cambridge

In the fourth match of the Christmas series for grown-ups, St Catherine's College, Oxford, with Guardian drama critic Michael Billington and novelist Susie Boyt, fights it out against the Peterhouse, Cambridge team, with politician Lord Michael Howard and Coast's Mark Horton. Both teams are playing for a place in the semi-finals.

Jeremy Paxman asks the questions.