Sandi Toksvig hosts the `QI' Christmas special with guests Josh Widdicombe, Susan Calman, Matt Lucas and Alan Davies.

Sandi Toksvig looks at nature and nurture with Ross Noble, Cariad Lloyd, David Baddiel, and Alan Davies.

Sandi Toksvig talks nonsense with Holly Walsh, Nish Kumar, Phill Jupitus, and Alan Davies.

Sandi Toksvig natters about noodles with Matt Lucas, Jerry Springer, Cariad Lloyd, and Alan Davies.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

Comedy clip show highlighting amusing internet videos.

Richard Hammond is in Texas to immerse himself in the surprisingly interesting world of NASCAR racing, he then visits South Africa to test a bigger, even more rugged alternative to the famous Hummer.

Across Europe, police forces are on the hunt for fugitives, fleeing from justice. Detectives in the UK, Amsterdam and Spain track down men and women on the run.

Sandi Toksvig hosts the `QI' Christmas special with guests Josh Widdicombe, Susan Calman, Matt Lucas and Alan Davies.

Sandi Toksvig looks at nature and nurture with Ross Noble, Cariad Lloyd, David Baddiel, and Alan Davies.

Sandi Toksvig talks nonsense with Holly Walsh, Nish Kumar, Phill Jupitus, and Alan Davies.

Sandi Toksvig natters about noodles with Matt Lucas, Jerry Springer, Cariad Lloyd, and Alan Davies.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

Richard Hammond is in Texas to immerse himself in the surprisingly interesting world of NASCAR racing, he then visits South Africa to test a bigger, even more rugged alternative to the famous Hummer.

Across Europe, police forces are on the hunt for fugitives, fleeing from justice. Detectives in the UK, Amsterdam and Spain track down men and women on the run.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

David is joined by Mackenzie Crook and Chris Packham, while Lee Mack is joined by Victoria Coren and Rhod Gilbert.

Lorraine Kelly and Dara O Briain join David, and Lee is joined by Barry Cryer and Sue Perkins.

Sandi Toksvig hosts the `QI' Christmas special with guests Josh Widdicombe, Susan Calman, Matt Lucas and Alan Davies.

Sandi Toksvig looks at nature and nurture with Ross Noble, Cariad Lloyd, David Baddiel, and Alan Davies.

Sandi Toksvig talks nonsense with Holly Walsh, Nish Kumar, Phill Jupitus, and Alan Davies.

Sandi Toksvig natters about noodles with Matt Lucas, Jerry Springer, Cariad Lloyd, and Alan Davies.

Contestants try to score as few points as possible by plumbing the depths of their knowledge.

Host Jimmy Carr returns and team captains Jon Richardson and Sean Lock are joined by Craig Revel Horwood, Roisin Conaty, Rob Delaney and Tom Rosenthal in this edition.

David is joined by Mackenzie Crook and Chris Packham, while Lee Mack is joined by Victoria Coren and Rhod Gilbert.

Lorraine Kelly and Dara O Briain join David, and Lee is joined by Barry Cryer and Sue Perkins.

Dara on stage at the Hammersmith Apollo during his sold out-tour of the UK and Ireland. The performance was his first stand-up show after a three-year hiatus.

The final date from Dara O'Brian's sell-out 100-date tour of the UK and Ireland. Recorded in front of 2,500 fans at London's Theatre Royal, this show displays Dara at his quick-thinking best.

Recorded at the world famous Hammersmith Apollo before 3,300 fans, this is the culmination of Dara's massive 2008 sellout tour of the UK and Ireland. Dara is at his best, mixing top drawer material with lightning-fast improvisation to give his audience yet another hilarious night to remember.

Host Jimmy Carr and team captains Jon Richardson and Sean Lock are joined by Henry Winkler, Henning Wehn, Romesh Ranganathan and Rebecca Adlington.

Dara on stage at the Hammersmith Apollo during his sold out-tour of the UK and Ireland. The performance was his first stand-up show after a three-year hiatus.

The final date from Dara O'Brian's sell-out 100-date tour of the UK and Ireland. Recorded in front of 2,500 fans at London's Theatre Royal, this show displays Dara at his quick-thinking best.

Recorded at the world famous Hammersmith Apollo before 3,300 fans, this is the culmination of Dara's massive 2008 sellout tour of the UK and Ireland. Dara is at his best, mixing top drawer material with lightning-fast improvisation to give his audience yet another hilarious night to remember.

Sandi Toksvig looks at nature and nurture with Ross Noble, Cariad Lloyd, David Baddiel, and Alan Davies.