In the third match of the Christmas series for university alumni is the team from the Pembroke College, Cambridge, with host of TV's Impossible Rick Edwards and former Olympic rower Cath Bishop. They fight it out for a place in the semis with King's College, London, whose team includes Any Answers? presenter Anita Anand and Radio 4 The Kitchen Cabinet panellist Zoe Laughlin. Jeremy Paxman asks the questions.