John Humphrys puts the questions to some of the UK's cleverest celebrities. Featuring Tom Kerridge, Steph Houghton, Rob Delaney and Dominic Wood. Show more

John Humphrys puts the questions to some of the UK's cleverest celebrities. Featuring Liam Fox, Jon-Allan Butterworth, Nick Helm and Kimberley Nixon. Show more

Singer and 60s icon Sandie Shaw, actor Neil Dudgeon, comedian Stewart Francis and broadcaster Andrew Collins face questions in the hot seat. Show more

John Humphrys tests Nathan Caton on the Premier League, Dev on Will Ferrell's films, Adam Jones on the British and Irish Lions and Patrick Grant on Ralph Lauren. Show more

Four celebrities face John Humphrys and the black chair. The famous faces being quizzed on their specialist subjects are Phil Daniels, Rick Wakeman, Ian Lavender and Tim Vine. Show more

Four famous contenders pit their knowledge against each other and the clock. The contestants are Joe Pasquale, Roger Black, Tony Audenshaw and Diane Louise Jordan. Show more

Four celebrities face John Humphrys and the black chair. Guests are writer Tony Parsons, actress Diane Parish, astrologer Russell Grant and broadcaster Paul Gambaccini. Show more

Former home secretary Jacqui Smith, actor Nathaniel Parker, Strictly Come Dancing's Erin Boag and comedian Jason Manford are the contenders. Show more

John Humphrys puts four celebrities to the test in another episode of the classic quiz. Taking part are Amol Rajan, Reverend Richard Coles, Courtney Act and Mark Lane. Show more

John Humphrys puts four celebrities to the test in another episode of the classic quiz. Taking part are Joe Pasquale, Ricky Boleto, Toyah Wilcox and Jeanette Kwakye. Show more

John Humphrys puts four celebrities to the test in another episode of the classic quiz. Taking part are Shaun Ryder, Arabella Weir, Stef Reid and Sean Fletcher. Show more

John Humphrys puts four celebrities to the test in another episode of the classic quiz. Taking part are Elis James, Montana Brown, Madeline Smith and George Rainsford. Show more

John Humphrys puts four celebrities to the test in another episode of the classic quiz. Taking part are Ana Matronic, Joe Thomas, Maggie Alphonsi and Jay Rayner. Show more

John Humphrys tests four more celebrities in the famous black chair. Taking part are Christian Brassington, Claudia-Liza Armah, Edwina Currie and Mark Dolan. Show more

Four celebrities face John Humphrys and the black chair. Guests are comedian Ed Byrne, actor Tristan Gemmill, television presenter Anneka Rice and comedian and actor John Bishop. Show more

Four celebrities face John Humphrys and the black chair. Guests are director Michael Winner, newsreader Mishal Husain, comedian Dom Joly and actor and satirist John Bird. Show more

A new series of the celebrity version of Britain's toughest quiz. Tonight's contenders are Paul Bradley, Dan Snow, Peter Serafinowicz and William G Stewart. Show more

Four celebrities face John Humphrys and the black chair. Guests are Strictly dancer Darren Bennett, DJ Stuart Maconie, psychologist Dr Linda Papadopoulos and actor Andrew Lancel. Show more

Celebrities face John Humphrys and the black chair. Newsreader Alastair Stewart, naturalist Steve Backshall, Radio 1 DJ Comedy Dave Vitty and the entrepreneur Saira Khan compete. Show more

Four celebrities face John Humphrys and the black chair. Guests are Stewart Lee, John Thomson, Sascha Kindred and Matthew Lewis. Show more