'This Game Is For D**kheads' | Sean Lock's Worst Lie & More | Best Of Cats Does Countdown Series 11

Jonathan Ross and David Walliams engage in comedic banter, discussing past awards, seduction techniques, and Jonathan's poor performance on 'The Great Comic Relief Bake Off'. Joe Wilkinson joins in, admitting he's not good at spelling or maths, and shares his dislike for being in 'Dictionary Corner' due to viral clips on 'lad' Facebook pages.

Susie Dent offers advice to David Walliams, praising his children's books and his use of 'word alerts' for unusual words like 'chocolated' and 'bum boy'. David explains the origin of 'bum boy' in his book 'Billionaire Boy'.

Joe Wilkinson and Jonathan Ross participate in a challenge where they blindly identify objects by touch, leading to messy and humorous moments, including guessing spaghetti, a mustache, and a Chihuahua. David Walliams follows, identifying a full English breakfast, a gear stick, a stiletto, and an accordion, earning his team bonus points.

The contestants struggle with the letters round, expressing frustration with the difficulty and lack of fun. Sean Lock humorously reflects on the audience's age and the show's impact, while Catherine Tate's 'Nan' character is imagined as a fan of the show.

Catherine Tate reveals her lucky tennis cap mascot, a relic from her early comedy days. Sean Lock presents a 'gritty limerick' about the neglect of older people, which ends with a dark and unexpected twist. Miles Jupp and Catherine Tate also share their poems, with Sean's declared the winner by John Cooper Clarke.

John Cooper Clarke introduces his 'cheerleaders' – Rico's Old Leaders – after a disastrous attempt with pensioner cheerleaders. Rob Beckett brings a 'cutlery drawer' as his mascot, along with squash and biscuits, and encouraging messages from his mum, to help him with the game.

Susie Dent discusses old words from 'The Vulgar Tongue' that sound rude but have innocent meanings, such as 'tosspot' and 'cumbang'. Sean Lock then hilariously takes an impromptu ride on a mobility scooter, causing minor chaos and accidentally hitting Rob Beckett.

Contestants share their nine-letter words, with Rod Gilbert presenting 'nyladye' and David Walliams 'ladicer.' Sean Lock shares his three favorite smells: burnt hair, Just For Men, and the smell of old men's heads. Victoria Coren Mitchell discusses her 'guilty pleasure' of opera in translation and her husband's 'consultations' with prostitutes. Alex Horne attempts to remove Jenga blocks without knocking over a mug, demonstrating his coordination.

Alex Horne struggles with a math-related dance sequence, highlighting the difference between counting and adding. Teams are introduced: John Cooper Clarke and Claudia Winkleman, and Richard Ayoade and Rob Beckett. Richard and Rob discuss their contrasting personalities and team dynamics.

John Richardson talks about his invented 'autocorrect pills' for speech. John sets rules for his team with the help of former Premier League referee Dermot Gallagher, emphasizing no bad language or sexual touching. Rob Beckett unveils his unique 'mascot' - biscuits with childhood affirmations and squash - to help him through the game.

Susie Dent discusses new words like 'loyo' (laughing on your own). Richard Ayoade and Rob Beckett struggle with the numbers round, leading to humorous frustration. Rachel Riley impresses everyone with her complex mathematical solution to the numbers game, despite the other contestants' inability to solve it.

Sean Lock's distinctive look is compared to a 'before photo' in rejuvenation adverts. Danny Dyer's family history from 'Who Do You Think You Are' is mentioned, tracing his family back through centuries of poverty in the East End. Sean shares his 'worst lie' ever told to an American tourist.

Sean Lock presents his mascot, a taxidermied budgie named Dozy, as a tribute to its memory despite its taxidermy accident. He performs a 'send-off' for Dozy with a dramatic musical interlude and a drone, which flies off with the budgie, leading to chaos and humor.

David Walliams performs a comical duet, pretending to be Shakira, with Susie Dent providing percussion, singing about Shakira's supposed crush on him, much to the amusement of the audience.

John Richardson and Russell Howard play a 'Mr and Mrs' style game about their time as flatmates. John reveals he once charged his flatmates for cleaning, and has heart-shaped chest hair. Russell reveals John's most annoying habit was flossing between his toes with his socks, earning his team five points.