Episode 1
Alexander Armstrong and Richard Osman present a special celebrity test match edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Graeme Swann and Alison Mitchell, Michael Vaughan and Phil Tufnell, Melinda Farrell and Jonathan Agnew, and Ebony Rainford-Brent and Henry Blofeld.
Episode 2
Featuring Nigel Planer and Doon Mackichan, the Chuckle Brothers, Adil Ray and Kevin Eldon, and Nerys Hughes and Jeremy Dyson.
Episode 3
Featuring Anthea Turner and Andy Crane, Justin Fletcher and Gemma Hunt, Dave Benson-Phillips and Gareth Jones, Sally James and Geoffrey Hayes.
Episode 4
Alexander Armstrong and Richard Osman present a special celebrity edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Louise Wener and Kate Humble, Mary Peters and Jayne Torvill, Tony Hawks and Henry Kelly, and Gareth Hale and Norman Pace.
Episode 5
A special celebrity Noughties edition of the quiz that tests the depths of general knowledge, presented by Alexander Armstrong and Richard Osman. Featuring Ben Cohen and Kyran Bracken, Zoe Salmon and Dani Harmer, Patrick Baladi and Ewen MacIntosh and Cheryl Fergison and Ricky Groves.
Episode 6
Alexander Armstrong and Richard Osman present a special celebrity Radio 1 and Radio 1Xtra edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Clara Amfo and Trevor Nelson, Yasmin Evans and Greg James, Chris Stark and Scott Mills, and Dev Griffin and Sarah-Jane Crawford.
Episode 7
Alexander Armstrong and Richard Osman present a special celebrity writers edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Germaine Greer and Kathy Lette, Mark Billingham and Val McDermid, Mark Watson and Ian McMillan, and Freya North and Tony Parsons.
Episode 8
Celebrity version of the quiz, with Kate Williams, Adam Hart-Davis, Janina Ramirez, Andrew Graham-Dixon, Ben Willbond, Laurence Rickard, Lars Tharp and Tim Wonnacott.
Episode 9
Alexander Armstrong and Richard Osman present a special celebrity music edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Sinitta and Jaymi Hensley, Vernie Bennett and Easther Bennett, Claire Richards and Ian 'H' Watkins and Tony Christie and Ben Adams.
Episode 10
Alexander Armstrong and Richard Osman present a special celebrity Halloween edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Ruth Madoc and Russell Grant, Jedward, Louie Spence and Rory McGrath, and Linda Lusardi and Chico.
Episode 11
Alexander Armstrong and Richard Osman present a special celebrity child stars edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Tyger Drew-Honey and Thomas Turgoose, Lee MacDonald and Erkan Mustafa, Michelle Gayle and Adam Rickitt, Julie Dawn Cole and Mark Lester.
Episode 12
Alexander Armstrong and Richard Osman present a special celebrity food and drink edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Ed Baines and Paul Rankin, Richard Burr and Frances Quinn, Tony Singh and Cyrus Todiwala, and Jean-Christophe Novelli and Jo Pratt.
Episode 13
Alexander Armstrong and Richard Osman present a special celebrity Formula One edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Allan McNish and Claire Williams, Murray Walker and Nigel Mansell, Christian Horner and Suzi Perry, and David Coulthard and Mark Webber.
Episode 14
Alexander Armstrong and Richard Osman present a special business edition of the general knowledge quiz in which four teams of celebrities try to come up with the answers that no-one else could think of. Presented by Alexander Armstrong and co-host Richard Osman, and featuring Jacqueline Gold and Richard Farleigh, Tim Campbell and Saira Khan, Michelle Mone and Declan Curry, and Peter Ratcliffe and Jeff Salmon.
Episode 15
Alexander Armstrong and Richard Osman present a special family edition of the general knowledge quiz in which four teams of celebrities try to come up with the answers that no-one else could think of. Presented by Alexander Armstrong and co-host Richard Osman, and featuring Louis Theroux and Nancy Strang, Michael Underwood and Angellica Bell, Calum Best and Angie Best and Gary Lineker and Harry Lineker.
Episode 16
Alexander Armstrong and Richard Osman present a special celebrity reality TV edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Ruth Badger and Solomon Akhtar, Carl Fogarty and Jimmy Bullard, Craig Phillips and Nikki Grahame, and Jamie Laing and Alex Mytton.
Episode 17
Alexander Armstrong and Richard Osman present a special celebrity FA Cup edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Eni Aluko and Guy Mowbray, Kevin Kilbane and Mark Chapman, Dan Walker and Mark Lawrenson and Rachel Yankey and Kelly Smith.
Episode 18
Alexander Armstrong and Richard Osman present a special health and fitness edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. With contestants Dr Dawn Harper and Dr Pixie McKenna, Robin Cousins and Rosemary Conley, Iwan Thomas and Katharine Merry, and Dr Chris Steele and Lizzie Webb.
Episode 19
Alexander Armstrong and Richard Osman present a special soap edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Joe Swash and John Altman, Nick Pickard and Ali Bastian, Victoria Bush and Zaraah Abrahams, and Sharon Maughan and Tina Hobley.
Episode 20
Alexander Armstrong and Richard Osman present a special sport edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Featuring Willie Thorne and Tony Jacklin, Andy Fordham and Deta Hedman, Tessa Sanderson and Derek Redmond, and Nick Easter and Martin Offiah.
