Mel Giedroyc: Unforgivable

Graham Norton reveals a lie to his mother that went too far leading to him having to have his appendix removed, Alex Brooker talks about trying to catch a girl in a Home Alone inspired trap and Desiree Burch admits to cheating with a friends boyfriend at high school.

Johnny Vegas overshares about what he used to get up to in the bath, Josh Widdicombe tells all about the time he ruined hundreds of Beckham fans day, and Clare Balding admits blaming her brother for a bowel movement in the bath 40 years ago.

Richard Ayoade admits he doesnt help others... ever, Ed Gamble tells a tale about a lads holiday, and Sindhu Vee reveals how protective she can be of playground swings. We also hear about Richards football antics, how Sindhu cant go to the cinema on her own, and Eds eventful last day of school.

Sara Pascoe reveals a truly terrible lie she told about having leukaemia to get out of work experience, Kammy tells how he burnt his parents house down and Jo Brand divulges how she was responsible for putting a guy she hooked up with on holiday in prison.

Mel and her dishonourable assistant Lou Sanders are joined by brilliant stand-ups Sarah Millican, Jamali Maddix and Chris McCausland. Sarah discusses what ingredient she thinks should be added to cakes in Amsterdam, Chris has to apologise to one of the victims of his prank-fuelled past while Jamali and Mel find out they have similar tactics when being caught short without a loo.

Mel and Lou are joined by stand-up and Strictly champion Bill Bailey, award-winning comedian Rosie Jones and former heavyweight champion of the world David Haye. Bill comes face to face with multiple victims of his and his dogs bad behaviour, David overshares about creative ways to take his training supplements and Rosie confesses all the times shes used her disability for evil.

Mel and Lou are joined by actor Sally Phillips, comedian Alan Davies and stand-up Ria Lina. Sally reveals the best way to get back at a horrible boss, Alan tells all about his court appearance and we find out why you should never leave your kids with Ria.

Mel and Lou are joined by the brilliant Jack Dee, TV sweetheart Lorraine Kelly, and internet sensation Munya Chawawa. Jack tells all about an unintentional rock and roll night on tour, we find out how Lorraine talks to her bosses and Munya is confronted by the victim of a prank that went too far.

Mel and Lou are joined by Rhod Gilbert, Susan Wokoma and Dermot OLeary. Rhod reveals why he shouldnt be trusted with a campervan, Susan tells an X-rated story and Dermot lifts the lid on a rendezvous from his early TV days.

This week Mel and her dishonourable assistant Lou Sanders are joined by Charlotte Church, Sophie Willan and Lara Ricote. Charlotte spills the beans on her wild child past, Sophie dishes out some karma and Lara reveals how she pulled off a cheese-based heist.

Mel and Lou are joined by Ellie Taylor, Josh Pugh and Stephen Mangan.

Mel and Lou are joined by Seann Walsh, Meera Syal and Maisie Adam.

In the first episode, Mel and her dishonourable assistant Lou Sanders are joined by Rylan Clark, Lucy Beaumont and Fatiha El-Ghorri. Lucy admits she nicked knickers in school, Fatiha reveals her secret cooking ingredient is sheep poo, and Rylan spills the beans on how he combined a pigeon meeting a sticky end and getting revenge on a colleague.

This week Mel and her dishonourable assistant Lou Sanders are joined by Nish Kumar, Ruby Wax and Reuben Kaye. Nish spills the beans on his x-rated workplace behaviour, Ruby tells of her drug smuggling past and Reubens NSFW pantomime pranks are revealed.

Mel and Lou are joined by Ross Kemp, Shirley Ballas and Rosie Jones as Shirley divulges her revenge on a cheating husband and Ross spills all on a prison-based prank.

Mel and Lou are joined by Alex Jones, Iain Stirling and Tim Renkow as Alex reveals how she got into trouble with the BBC and Iain spills the beans on being sacked.