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E1 Champion of Champions: Crossworders v Rugby Boys
The Crossworders, champions of series one, return to challenge the kings of series two, the Rugby Boys.
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E2 Children in Need Special: Wheel Men v Larks
The cunning wiles of the Wheel Men (Rev Richard Coles, Adam Hart-Davis, and Grub Smith) take on the combined brains of the Larks (Michael Bywater, Sir Andrew Motion, and Stuart Maconie).
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E3 Champion of Champions: Gamblers v Epicureans
The Gamblers, the winners of series three, square up to the Epicureans, the winners of series four.
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E4 University Challenge Special: Crossworders v University Challengers
Undefeated champions of champions, the Crossworders, risk their reputation by confronting the awesome brainpower of the University Challengers, captained by the illustrious Alex Guttenplan.
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E5 Comic Relief Special: Treesome v Larks
The Treesome (Brian Sewell, Adam Hart-Davis, and Grub Smith) lock intellectual brains with the Larks (Michael Bywater, Sir Andrew Motion, and Stuart Maconie).
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E6 Children in Need Special: Great Believers v Free Speakers
The cunning wiles of the Great Believers (Nick Hornby, Dame Joan Bakewell, and John Lloyd) take on the combined brains of the Free Speakers (Ian Hislop, Simon Singh, and John Sessions).
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E7 Wall Night 1 (1)
Eight seasoned Only Connect teams return to take part in a Connecting Wall mini-tournament.
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E8 Wall Night 1 (2)
The semi-finals and final of the mini-tournament, plus wall-solving tales from celebrity alumni.
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E9 Champion of Champions: Crossworders v Epicureans
Series 3 & 4 champions the Epicureans take on Series 1 & 2 champions the Crossworders.
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E10 Mastermind Special: Crossworders v Masterminders
A trio of Mastermind series winners take on Only Connect champions the Crossworders.
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E11 Wall Night 2 (1)
Eight seasoned Only Connect teams return to take part in a Connecting Wall mini-tournament.
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E12 Wall Night 2 (2)
The semi-finals and final of the mini-tournament featuring seasoned Only Connect teams, plus wall-solving tales from celebrity alumni.
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E13 Sport Relief Special: Cutters v Backhanders
The Cutters (Nick Hornby, Mark Gatiss, and Samira Ahmed) take on the combined wits of the Backhanders (Ian Hislop, Stephen Mangan, and Allison Pearson).
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E14 Children in Need Special: Goldfingers v Fowls
The cunning wiles of the Goldfingers (Charlie Higson, Daisy Goodwin, and Matthew Parris) take on the combined brains of the Fowls (Rosie Boycott, Richard Osman, and Clarke Carlisle).
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E15 Champion of Champions: Analysts v Scribes
Series 5 champions the Analysts take on Series 6 champions the Scribes in a bid to be named Only Connect Champion of Champions.
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E16 Special: Eggheads v Davids
Three Eggheads take on three champion captains all called David.
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E17 Comic Relief Special 2013: Neuromantics v Muppets
The Neuromantics (Charlie Higson, Rufus Hound, and Baroness Susan Greenfield) take on the combined wits of the Muppets (David Mitchell, Rosie Boycott, and Bill Turnbull).
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E18 Children in Need Special: Scrabblers v The Balding Team
The Balding Team (Clare Balding, Clive Anderson, and Sir Simon Jenkins) take on the Scrabblers (Alice Arnold, Konnie Huq, and John Finnemore).
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E19 Sport Relief Special: Scribblers v Terriers
The Scribblers (Alice Arnold, Charlie Brooker, and Ed Smith) take on the Terriers (Clare Balding, Val McDermid, and Joshua Levine).
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E20 Children in Need Special: Noggins v Curiosities
The Noggins (Robert Peston, Patrick Marber, and Sophie Grigson), face the Curiosities (Kevin Eldon, Professor Steve Jones, and Kate Mosse).
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E21 Comic Relief Special: Waterbabies v Tillers
The Waterbabies (Reeta Chakrabarti, Tom Holland, and captain Patrick Marber) compete against the Tillers (Katie Derham, Steve Pemberton, and their captain, Professor Steve Jones).
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E22 Children in Need Special: Music Monkeys v Chess Pieces
The Music Monkeys, featuring captain David Baddiel with Clemency Burton-Hill and Philip Hensher, square up to the Chess Pieces, a team lead by Hugh Dennis and featuring Bonnie Greer and AN Wilson.
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E23 Sport Relief Special: Royal III v BBC
The Royal III - David Baddiel, Dr John Cooper Clarke, and Philippa Gregory - square up to the BBC - Hugh Dennis, Julian Lloyd Webber, and Lynne Truss.
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E24 Champion of Champions: Europhiles v String Section
Series 9 champions the Europhiles take on Series 11 winners the String Section.
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E25 Sport Special: Footballers v Korfballers
The Footballers and Korfballers return for a very special one-off sports special.
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E26 Family Special: Lasletts v Meeples
The Lasletts and Meeples return for a special family edition.
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E27 Quiz Special: QI Elves v Inquisitors
The QI Elves and Inquisitors compete in a special edition of the quiz.
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E28 Travel Special: Globetrotters v Eurovisionaries
Two former teams with a connection to travel return.
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E29 Happy Hour Special: Alesmen v Cosmopolitans
Two former teams with a connection to drinks return for a happy hour special.
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E30 Education: Clareites v Beaks
Two former teams with a connection to education return for a special.
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E31 Champion of Champions: Verbivores v Escapologists
Series 12 champions the Verbivores take on series 13 champions the Escapologists.
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E32 Christmas Special: Edwards Family v Wrights
Two favourite family teams from previous series return for a family-themed Christmas special.
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E33 North and South Special: Scunthorpe Scholars v Oxonians
Two favourite teams from previous series – one from the north and one from the south - return for a very special episode with a geographical flavour.
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E34 Doctors Special: Medics v Gallifreyans
Six favourite contestants from previous series return for a one-off special themed around doctors.
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E35 Music Special: Festival Fans v Choristers
Two favourite teams from previous series return for a very special musical episode.
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E36 Christmas Special: Turophiles v Corkscrews
Two favourite teams from previous series return for an evening of cheese, wine, and Christmas quizzing.
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E37 The Birds and the Bees Special: Birdwatchers v Beekeepers
Two teams from previous series – the Birdwatchers and the Beekeepers - return for a special episode.
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E38 Cold Special: Nordiphiles v Apres Skiers
The Nordiphiles and Apres Skiers return for a very special and chilly episode.
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E39 Champion of Champions: 007s v Puzzle Hunters
Series 15's champions, the 007s, take on Series 16's champions, the Puzzle Hunters.
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E40 Christmas Special: Polyhymnians v Channel Islanders
It's Christmas (special) time! Mistletoe and wine, boughs of holly, jolly teams from yesteryear oozing Christmas spirit and eager to tuck into some delicious questions.
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E41 Mystery Special: Endeavours v Whodunnits
It’s a mystery-themed special, and two teams emerge from the mists of time to attempt to solve a series of mysterious puzzles.
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E42 Love Special: Part-Time Poets v Romantics
In this love-themed special, two teams from previous series have been lured out of retirement by the prospect of some lovely questions.
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E43 Champion of Champions: Dicers v Data Wizards
Two all-conquering teams from previous series battle for the title of champion of champions – the Dicers (Series 14) and the Data Wizards (Series 17).
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E44 Christmas Special: Relatives v Muppets
A special festive edition, where two family teams return for a yuletide battle of wits.
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E45 Fashion Special: Dandies v Peacocks
Two fashionable teams from yesteryear return to strut their stuff.
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E46 Boxing Special: Wrestlers v Arrowheads
There’s been a mix-up, but never mind: two ‘sporting’ teams from previous series have returned to fight it out.
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E47 Politics Special: Politicians v Activists
Previous contestants return – professional politicians, including a real, live Conservative MP (correct at time of recording), face a team of activists.
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E48 Royal Special: Vikings v Antiquarians
Two teams from previous series return for a battle royal, and the questions are as tricky as ever.
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E49 Christmas Special: Mothers Ruined v Godyn Family
It’s Christmas, and two family teams return for Only Connect’s most Christmassy Christmas special yet.
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E50 Books Special: Orwellians v Jillies
Two teams from previous series, both taking their names from giants of literature, face fiendish, bookish questions.
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E51 BBC Special: Bankers v Science Writers
Teams from the first series return to celebrate 60 years of BBC Two.
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E52 Transatlantic Special: Cinephiles v Harlequins
Anything and everything relating to the ‘special relationship’ is on the cards, as two British quizzers and their US captain take on a British captain and his two US teammates.
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E53 Single Special: Brews v Irregulars
It’s the ‘single special’, celebrating singles, solos, and everything that comes in groups of one.
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E54 Sounds Special: Record Collectors v Jukeboxers
Two teams from previous series return, but there’s a twist to the format – nearly all the questions are audio only.
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E55 Champion of Champions: Strigiformes v Thrifters
It’s everyone’s dream to be a champion, and it’s every champion’s dream to beat another champion. Now is their chance.
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E56 The Only Connect Pub Quiz: Hopsters v Taverners
Charge your glasses, it’s the Only Connect Pub Quiz! The format has been tweaked, and the budget has been blown on several packs of pork scratchings.
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E57 Christmas Special: Whitcombes v Gardners
It’s Christmas, and two families from series gone by have battled traffic jams and rail replacement bus services to come together and play an exasperating game.
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E58 Law Special: Cartophiles v Harmonics
The law is under the spotlight in this episode. As indeed is a judge’s wig, which turns out to be surprisingly itchy.
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E59 Third-Place Play-Off Play-Off Special: Poptimists v Ramblers
Ever wondered who would triumph if the winners of the third-place play-off from one series took on the winners of the play-off from another?