Episode 1

The host, Jimmy Carr, read out questions relating to events of 2004 to three teams of celebrities: Simon Pegg & Liza Tarbuck, David Walliams & Rob Brydon, June Sarpong & Jonathan Ross. Louis Walsh, Nadia Almada and Kelly Holmes all made live appearances to read out the questions for the months of April, June, and August respectively. Recorded questions from Bono and The Bear from Bo' Selecta were shown too along with films of Richard and Judy discussing events.

Episode 2

The host, Jimmy Carr, read out questions relating to events of 2005 to three teams of celebrities: Sharon Osbourne & Jonathan Ross, Denise van Outen & David Mitchell, and Gordon Ramsay & Rob Brydon. Guest questioners in the studio included Jordan & Peter Andre and David Tennant and there were also recorded questions by several celebrities including Richard and Judy, Cameron Diaz, Toni Collette and Kevin Pietersen.

Episode 3

The host, Jimmy Carr, read out questions relating to events of 2006 to three teams of celebrities: Russell Brand & Noel Fielding, Rob Brydon & David Walliams, and Jonathan Ross & Cat Deeley. Guest questioners in the studio included Boy George, Myleene Klass and Matt Willis and Guy Goma. Pre-recorded questions were asked by Sir Ian McKellen, Lily Allen, Carol Vorderman, Courtney Love, Girls Aloud, and Sacha Baron Cohen in his guise as Borat.

Episode 4

The host, Jimmy Carr, read out questions relating to events of 2007 to three teams of celebrities: Russell Brand & Noel Fielding, Rob Brydon & David Mitchell, and Jonathan Ross & Lily Allen. Guest questioners in the studio were Christopher Biggins and Cerys Matthews. Pre-recorded questions were asked by Take That, Gordon Ramsay, Thom Yorke and Jon Snow. John Hurt read out extracts of the year's best selling autobiographies.

Episode 5

The host, Jimmy Carr, read out questions relating to events of 2008 to three teams of celebrities: Dara Ó Briain & Davina McCall, Rob Sean Lock & James Corden, and Michael McIntyre & Claudia Winkleman. Guest appearances included Alan Carr, Katy Perry, the Fonejacker, Sarah Silverman, John Hurt and Sir Alan Sugar along with regulars Jon Snow and the children from Mitchell Brook Primary School, with another selection of topical school plays.

Episode 6

Why was Christian Bale so angry in January? What made NASA so happy in December? And which scandal prompted President Obama to call Kanye West a "jackass" in September? The biggest, fattest and funniest quiz of the year returns with a stellar line-up including David Mitchell, Charlie Brooker, Claudia Winkleman, Rob Brydon, Russell Brand and Jonathan Ross. Jimmy Carr does the quizzing, Peter Andre drops in for a surprise visit and as usual there's a glittering host of A-listers popping up to ask questions about the year's events.

Episode 7

Jimmy Carr puts a panel of celebrities including Jonathan Ross, Ruth Jones, Alan Carr, Noel Fielding, Michael McIntyre and Richard Ayoade to the test as they battle it out to see who remembers most about the events of 2010. Can you remember the name of instrument that was the scourge of the South African World Cup? Which unsuspecting character did Gordon Brown brand as 'ignorant' during the general election? What did 50-year-old spinster Mary Bale throw away to become Britain's most hated woman? If you know the answer to all, some, or even none, of the above then join Jimmy as he challenges a host of famous faces to win the coveted Big Fat Quiz crown.

Episode 8

Jimmy Carr puts a panel of celebrities to the test including Miranda Hart, Eddie Izzard and Jamie Oliver alongside veteran quizzers Jonathan Ross, David Walliams and David Mitchell.

Episode 9

Jimmy Carr puts another panel of celebrities to the test as they battle it out to see who remembers most about 2012. What did Prince Harry get up to in Vegas? Why were we all talking about pasties and sausage rolls? And how did Usain Bolt celebrate his amazing 200m win at the Olympics? If you know the answer to all, some or even none of the above, then join us as a host of big names, including Jonathan Ross, Russell Howard, Jack Whitehall and James Corden, vie for the coveted Big Fat Quiz crown. As usual, Jimmy will be calling on some seriously A-list question-setters, with Seth Rogen, Jack Black, Ricky Gervais, Will Ferrell, Quentin Tarantino and Sacha Baron Cohen all turning up to lend a helping hand in previous years.

Episode 10

Jimmy Carr puts a panel of A-List celebrity teams to the test. This year's teams are Jack Whitehall with Jonathan Ross, Dara O Briain with Kristen Schaal, and Noel Fielding with Richard Ayoade.

Episode 11

Jimmy Carr tests the memories of celebrity contestants Richard Ayoade, David Mitchell, Mel B, Micky Flanagan, Sarah Millican and Kevin Bridges.

Episode 12

Jimmy Carr challenges Rob Brydon, Richard Ayoade, David Mitchell, Claudia Winkleman, Greg Davies and Jo Brand to battle for the coveted Big Fat Quiz crown, and an array of celebs join in the fun.

Episode 13

Quizmaster Jimmy Carr tests Richard Ayoade, Rob Delaney, Mel Giedroyc, Sarah Millican, David Mitchell and Romesh Ranganathan in weird and wonderful ways all about 2016.

Episode 14

Jimmy Carr tests Richard Ayoade, Noel Fielding, David Mitchell, Big Narstie, Katherine Ryan and Roisin Conaty to see how closely they've been paying attention to the last year.

Episode 15

Jimmy Carr is joined by Richard Ayoade, Noel Fielding, Mo Gilligan, David Mitchell, Claudia Winkleman and Michelle Wolf to battle it out to see who can remember most about the past year.

Episode 16

Jimmy Carr hosts, as Dara O'Briain, Maya Jama, Asim Chaudhry, Roisin Conaty, Richard Ayoade and Noel Fielding compete to see who can remember the most about the last 12 months.

Episode 17

Jimmy Carr quizzes James Acaster, Stacey Solomon, David Mitchell, Maya Jama, Richard Ayoade and Joe Lycett on the hot topics of the past 12 months, from Harry and Meghan to Kim and Kanye.

Episode 18

Jimmy Carr quizzes Judi Love, James Acaster, Sarah Millican, Jonathan Ross, Guz Khan, and Sara Pascoe on the hot topics of the past 12 months.

Episode 19

Celebrity guests for 2022 are Stephen Merchant, Katherine Ryan, Richard Ayoade, Maisie Adam, Jonathan Ross and Rose Matafeo. As always, Jimmy will be ably assisted by a panel of top celebrity teams and a series of superstar question setters including Mitchell Brook Primary School and Charles Dance.

Episode 20

Jimmy Carr hosts as Richard Ayoade, Katherine Ryan, Mel Giedroyc, Mo Gilligan, Rosie Jones and Kevin Bridges answer questions about Keir Starmer's sparkle and the Pope's fashion sense.

Episode 21

Question master Jimmy Carr is joined by Richard Ayoade, Katherine Ryan, Rob Beckett, Judi Love, Chris McCausland and Maisie Adam as they battle it out to see who knows the most about the year that's been.