It is the grand final of this seasonal competition for alumni from some of the UK's top universities - which university will be Christmas University Challenge champions?

Jeremy Paxman asks the questions.

It is the second of the semi-finals in the University Challenge Christmas quiz for grown-ups.

Jeremy Paxman asks the questions.

Jeremy Paxman asks the questions in the first of the semi-finals in the Christmas quiz for grown-ups.

It is the last first-round match in the Christmas series for university alumni. The Warwick team includes actor Tom Goodman-Hill and presenter of Radio 4's The World Tonight Ritula Shah. Playing them is the Imperial team, with thrills engineer Brendan Walker and writer and broadcaster Kenan Malik.

Jeremy Paxman asks the questions.

It is the penultimate first-round match in the Christmas quiz for grown-ups and two teams are doing battle for a place in the semis. They are Trinity Hall, Cambridge, with Peep Show actor Sophie Winkleman and Guardian TV reviewer Lucy Mangan, and St Peter's College, Oxford, with BBC security correspondent Gordon Corera and journalist and broadcaster Afua Hirsch.

Jeremy Paxman asks the questions.

It is match five of this special Christmas series for distinguished alumni.

In the Royal Holloway team are ceramics designer Emma Bridgewater and TV historian Fern Riddell. They are fighting it out for a place in the semis against Sussex, featuring BBC parliamentary correspondent Mark D'Arcy and science fiction writer and critic Kim Newman.

Jeremy Paxman asks the questions.

In the fourth match of the Christmas series for grown-ups, the Liverpool team, with actor Anna Maxwell Martin and broadcaster Roger Bolton, fight it out against the Hull team, with comedian Lucy Beaumont and novelist Tracy Borman.

Jeremy Paxman asks the questions.

In the third match of the Christmas series for university alumni, the team from the Guildhall School of Music and Drama features actors Monica Dolan, from BBC comedy W1A, and Holby City's Bob Barrett. They fight it out for a place in the semis with the team from UCL, featuring BBC news presenter Maryam Moshiri and Arctic explorer Pen Hadow.

Jeremy Paxman asks the questions.

It is the second match of the Christmas quiz with two teams of graduates fighting it out for a place in the semi-finals.

Playing for the Birmingham City team are Carole Boyd, who plays Linda Snell in the Archers, and gardener and broadcaster Bunny Guinness. Their opponents on the Wadham, Oxford, team include journalists and broadcasters Anne McElvoy and Jonathan Freedland.

Jeremy Paxman asks the questions.

In the opening match of the Christmas quiz for grown-ups, two teams do battle for a place in the semi-finals. The Leeds team includes the Reverend Richard Coles and Human Planet photographer Tim Allen. Their opponents are from Clare College, Cambridge, including writer and broadcaster Marcel Theroux and soprano Elin Manahan Thomas.

Jeremy Paxman asks the questions.