Stephen Fry introduces the QI Christmas Special - and a very special guest. With Carrie Fisher, Bill Bailey and Alan Davies.
Stephen Fry looks at luck and loss with Jeremy Clarkson, Sandi Toksvig, Danny Baker and Alan Davies.
Stephen Fry looks at the multi-sized world of the little and the large with Richard Osman, Lucy Porter, Phill Jupitus and Alan Davies.
Stephen Fry looks at some landmarks with Jo Brand, Colin Lane, David Mitchell and Alan Davies.
Among the guests on Graham's sofa are Hollywood stars Ryan Reynolds and Josh Brolin, together in irreverent superhero sequel `Deadpool 2'. Plus, sporting icon David Beckham, BAFTA-nominated actor Vanessa Kirby, and music legend Joan Armatrading chatting and performing `I Like It When We're Together' from her new album.
Contestants try to score as few points as possible by plumbing the depths of their knowledge.
Sandi Toksvig considers various odds and ends. Ever wondered how to tell a schnauzerorgan from a paddywhack? Sandi has the answers. With Romesh Ranganathan, Matt Lucas, Liza Tarbuck and Alan Davies.
Stephen Fry looks into love and loveliness with Josh Widdicombe, Aisling Bea, Tony Hawks, and Alan Davies.
Stephen Fry looks into ladies and gents with Ross Noble, Kathy Lette, Sue Perkins and Alan Davies.
Together on Graham's sofa are `Game of Thrones' star Emilia Clarke, starring in `Solo: A Star Wars Story', plus pop icon Gloria Estefan talking about `On Your Feet', the new show about her life and music. They are joined by star of `Broadchurch' David Tennant, and the irrepressible Miriam Margolyes, appearing in BBC1's `Call The Midwife'. There will also be music from Leon Bridges, performing new single `Beyond'.
Louis travels to Las Vegas to meet with those attracted to gambling.
Comedy clip show highlighting amusing internet videos.
Shining a light on those drivers who simply can't do things by the book in Not The Highway Code before celebrating some people's good fortune in Lucky Pedestrians.
Clip show featuring atrocious driving and road mishaps captured by dashboard cameras around the world. Highlights include the art of crashing without assistance, close encounters, dashboard ornaments, the stranger side of life on the open road, Strictly Car Crashing, Night Time Nonsense, Off Road Rodeo, The Tram, Fail Look Both Ways featuring careless pedestrians, the quiz Hit or Miss... not to mention Car Crash TV Driver of the Week.
Louis travels to Phoenix, Arizona - the capital of dementia care. He spends time at Beatitudes, a residential institution, and also with those looking after loved ones at home to try to understand the struggle of living in a world of encroaching shadows - and of keeping relationships alive in circumstances that can be among the strangest and most challenging imaginable.
After Philip Croydon is found dead in a hotel room blindfolded with his hands tied, it's thought he is a victim of a doomed sex game. However, his wife hides a dark secret.
Louis Theroux spends time in two of London's biggest adult eating-disorder treatment facilities. He meets women of all ages and at various stages of their illness, and witnesses the power anorexia holds over them.
Jimmy Carr hosts a brand new series of topical comedy panel show with new team captains Rob Beckett and Aisling Bea. The teams discuss and dissect the topics that set the great British public's chins wagging. In their quest to uncover the nation's most popular talking points, Rob and Aisling are joined by Joey Essex, Channel 4 News presenter Cathy Newman and comedians Roisin Conaty and Nish Kumar.