Season
- Season 20 2024-08-12
- Season 19 2023-07-17
- Season 18 2022-08-29
- Season 17 2021-07-12
- Season 16 2020-09-21
- Season 15 2019-09-02
- Season 14 2018-10-22
- Season 13 2017-07-28
- Season 12 2016-07-11
- Season 11 2015-07-13
- Season 10 2014-09-01
- Season 9 2014-04-14
- Season 8 2013-09-23
- Season 7 2013-05-13
- Season 6 2012-08-27
- Season 5 2011-08-15
- Season 4 2010-09-06
- Season 3 2010-04-01
- Season 2 2009-07-13
- Season 1 2008-09-15
- Season 0 2009-12-21
Episode
- Episode 1: Crossworders v Rugby Boys: The Champion of Champions
- Episode 2: Children in Need Special
- Episode 3: Series 3 vs Series 4 Winners Special
- Episode 4: University Challenge Special
- Episode 5: Comic Relief Special
- Episode 6: Children in Need Special: Great Believers vs Free Speakers
- Episode 7: Wall Night 1 (1)
- Episode 8: Wall Night 1 (2)
- Episode 9: Champion of Champions: Crossworders v Epicureans
- Episode 10: Only Connect vs Mastermind Special: Crossworders vs Masterminders
- Episode 11: Wall Night 2 (1)
- Episode 12: Wall Night 2 (2)
- Episode 13: Sport Relief Special: Cutters vs Backhanders
- Episode 14: Children in Need Special: Goldfingers v Fowls
- Episode 15: Champion of Champions: Analysts v Scribes
- Episode 16: Special: Eggheads v Davids
- Episode 17: Comic Relief Special 2013: Neuromantics v Muppets
- Episode 18: Children in Need Special: Scrabblers v The Balding Team
- Episode 19: Sport Relief: Scribblers v Terriers
- Episode 20: Children in Need: Noggins v Curiosities
- Episode 21: Comic Relief Special: Waterbabies v Tillers
- Episode 22: Children in Need: Music Monkeys v Chess Pieces
- Episode 23: Sport Relief: Royal III v BBC
- Episode 24: Champion of Champions: Europhiles v String Section
- Episode 25: Sport: Footballers v Korfballers
- Episode 26: Family: Lasletts v Meeples
- Episode 27: Quiz: QI Elves v Inquisitors
- Episode 28: Travel: Globetrotters v Eurovisionaries
- Episode 29: Happy Hour: Alesmen v Cosmopolitans
- Episode 30: Education: Clareites v Beaks
- Episode 31: Champion of Champions: Verbivores v Escapologists
- Episode 32: Christmas: Edwards Family v Wrights
- Episode 33: North and South: Scunthorpe Scholars v Oxonians
- Episode 34: Doctors: Medics v Gallifreyans
- Episode 35: Music: Festival Fans v Choristers
- Episode 36: Christmas: Turophiles v Corkscrews
- Episode 37: The Birds and the Bees: Birdwatchers v Beekeepers
- Episode 38: Cold: Nordiphiles v Apres Skiers
- Episode 39: Champions: 007s v Puzzle Hunters
- Episode 40: Christmas: Polyhymnians v Channel Islanders
- Episode 41: Mystery: Endeavours v Whodunnits
- Episode 42: Love: Part-Time Poets v Romantics
- Episode 43: Champion of Champions: Dicers v Data Wizards
- Episode 44: Christmas – Relatives v Muppets
- Episode 45: Fashion – Dandies v Peacocks
- Episode 46: Boxing - Wrestlers v Arrowheads
- Episode 47: Politics: Politicians v Activists
- Episode 48: Royal Special: Vikings v Antiquarians
- Episode 49: Christmas Special: Mothers Ruined v Godyn Family
- Episode 50: Books Special: Orwellians v Jillies
- Episode 51: BBC Special: Bankers v Science Writers
- Episode 52: Transatlantic Special: Cinephiles v Harlequins
- Episode 53: Single Special: Brews v Irregulars
- Episode 54: Sound Special: Record Collectors v Jukeboxers
- Episode 55: Champion of Champions Special: Strigiformes v Thrifters
Only Connect Specials BBC Special: Bankers v Science Writers
The fiendishly difficult quiz show in which two teams of three contestants have to find the connection between seemingly unrelated clues, where patience and lateral thinking are as vital as knowledge.
