When... Goes Horribly WrongEpisodes Guide

Good Morning Britain co-host Kate Garraway narrates this showcase of unforgettable moments involving TV guests. Gloria Hunniford tells the story of when Bruce Forsyth went walkabout on her chat show, ex-cricketer Monty Panesar relives his disastrous appearance on Celebrity Mastermind, while Jenni Falconer remembers her embarrassing encounter with David Hasselhoff, which caused an audience of millions to cringe. Plus, Star Trek actor William Shatner is seen at his most bizarre. Other less-than-perfect moments involve the likes of Phillip Schofield, Jonathan Ross and legendary punk rock hell-raiser John Lydon.

Less-than-perfect moments from some of the nation's favourite shows over the years. From the black and white days of the 1960s and Dixon of Dock Green, to the 1970s and The Generation Game, right through the 80s, 90s and 00s to the present day. There are disastrous moments from classic stars, including Lenny Henry, Lorraine Kelly, Oliver Reed and Russell Harty.

Ken Bruce narrates a selection of disastrous interviews, including the time Danny Dyer was given the challenge of not swearing on The Jonathan Ross Show and the time Tyson Fury stormed out of an interview with veteran reporter Nick Wallis after just 30 seconds. Plus, there's bad behaviour from Johnny Rotten and Piers Morgan, Oliver Reed making a startling admission and a long-forgotten interview with Olivia Newton-John in which she fell off her seat laughing - literally.

Fern Britton narrates a selection of TV's most memorable guests, whether they're suffering a slip of the tongue, a technical meltdown or having a bust-up. Featuring less-than-perfect appearances by Piers Morgan, Jonathan Ross, Stormzy, Shirley Bassey, Bez, Lembit Opik and Kathy Burke. Contributors include presenters Richard Arnold, Lucrezia Millarini, James Whale and Stephen Bailey.

Richard Arnold narrates a raucous rundown of live TV's greatest fails, from technical trouble and jaw-droppingly inappropriate behaviour, fistfights to collapsing sets. Highlights include the day Lorraine Kelly was forced off air, the reality TV star who revealed more than she intended to the nation, and telly veteran John Stapleton opens up about the day The Time The Place was taken off due to a protest in the studio. Plus, contributions from Penny Smith, Dom Joly, Maria McErlane, Matt Johnson and others.

Moira Stuart narrates a compilation of TV news disasters, from reporters out in the field who are up against the elements to kids running amok in the studio. Krishnan Guru-Murthy gives an insight into his painfully awkward interview with comedian Richard Ayoade, while Dermot Murnaghan opens up about the time he upset the president of Estonia so much he walked off the programme. With contributions by Jan Leeming, John Stapleton and Denis Tuohy.

Julian Clary narrates a compilation of disasters from award ceremonies, from trips and stumbles on the red carpet to wrong winners being announced and sore losers making bizarre protests, with moments from the Oscars, the Brits, the Golden Globes and the Grammys. Samantha Fox opens up about her shambolic night hosting the Brits in 1989, Kaye Adams recalls the wardrobe malfunction she suffered on the red carpet at the Pride of Britain Awards, and there's the time Gemma Collins fell down a trap door at the Radio 1 Teen Awards.

Vicky Pattison narrates a compilation of on-air disasters from the world of reality TV, with misjudged formats, shows that bombed, stars who fell from grace and unscripted bust-ups. The show features outrage and scandal from I'm a Celebrity, The Big Reunion and Come Dine with Me, as well as unearthing some long-forgotten format horrors that were best left buried. With contributions from Sean Fletcher, Alison Hammond, Vogue Williams, Nikki Grahame, Bianca Gascoigne, Paul Danan and Jessie Cave.

Gloria Hunniford narrates a compilation of on-air disasters from chats shows, featuring stroppy hosts, technical troubles and on-screen bust-ups. Highlights include Russell Harty getting an unfortunate blow to the groin, John Stapleton being attacked by Rod Hull's Emu, Spike Milligan handling an unexpected guest on Wogan in a way that only he could, and TV veteran Eamonn Holmes lifting the lid on his worst interview ever, with a practically mute David Blaine.

Tony Blackburn narrates a compilation of on-air disasters from the decade, including Doris Day's blouse bursting open unexpectedly and a candid interview with Muhammad Ali. Mickey Rooney has a bad day at the office plugging his short-lived sitcom, and there are bloopers from TV favourites including The Lucy Show, Gunsmoke and Star Trek. Contributors include Amanda Barrie, Freddie 'Parrot Face' Davies, Simon Williams, Erin Murphy and Mark Lester.

Maria McErlane narrates a compilation of scandalous moments gone wrong including the couple who used a marital aid at the dinner table in Married at First Sight and an awkward moment from Come Dine with Me involving a grandmother in her sixties and a young hairdresser. With input from Dawn Neesom, Linda Lusardi and Jack Fincham.

Epic fails and less-than-perfect moments from TV hosts, including Esther Rantzen's arrest while filming and BBC2's opening night. Anne Diamond, Denis Tuohy and Ross King feature.

Julian Clary narrates a compilation of disastrous mishaps from comedy shows. Featuring a stunt fight that ended badly for comedian Russell Howard, an incident that left Tony Hancock determined to never perform live again, and a rare outtake from Tom, Dick and Harriet. That long-forgotten sitcom from 1982 and 1983 featured former Return of the Saint star Ian Ogilvy and actor/director Lionel Jeffries. Their stunt involving a partly submerged car could have ended in disaster.

Ainsley Harriott narrates a selection of less-than-perfect moments from some of the nation's best-loved cookery TV shows, including MasterChef, Saturday Kitchen and Sunday Brunch. Incidents include Tim Lovejoy taking a tumble live in front of shocked viewers, Marco Pierre White having one of his infamous on-air meltdowns, and Fanny Cradock taking things too far and ending her own TV career in the process.