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E1 Epicureans v Courtiers
A team of three old university pals with a shared love of exotic foods and fine dining pit their wits against a trio of Ulstermen from the Northern Ireland Court Service.
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E2 The Wrights v Urban Walkers
The Wright family from Leeds pool their knowledge of IT, Electrical Engineering, and Mexican cinema to challenge the brainpower of the Urban Walkers, a team unified by their love of taking extended inner city hikes across various European capitals.
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E3 Radio Addicts v Taxonomists
A doctor, a teacher, and an accountant with a shared passion for radio square up to a trio of professional taxomomists - three women who make companies more successful through their precise use of language.
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E4 Brit Poppers v Geocachers
Three stalwarts of the Camden music scene (including the man who discovered Blur) pit their wit and wisdom against a husband, wife, and pal who share a love of geocaching, the craze for treasure-hunting using GPS.
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E5 Fantasy Writers v Bridge Players
Three fantasy writers, captained by a man who has written for Doctor Who, lock horns with a trio of bridge players, each with post-grad qualifications from Oxford University.
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E6 Mensans v Bloggers
Three friends who originally met through British Mensa pit their wits against a team drawn together by their love of TV blogs and forums.
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E7 Mountain Men v In-Laws
Three dedicated hill walkers from Derbyshire face off against a family threesome of husband, wife, and brother-in-law.
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E8 Alesmen v Pool Sharks
Three men joined by their enthusiasm for real ale confront two maths graduates and a pharmacist who are a regular fixture at their local pool hall.
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E9 Epicureans v Bridge Players
In the first of the quarter-finals, three old chums from university days who share a passion for fine dining take on the combined knowledge of three Oxford graduates with a love of bridge.
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E10 Wrights v Bloggers
In the second quarter-final, the Wright family of mum, dad, and daughter return to pit their wits against a trio of committed bloggers who met on TV gossip forum sites.
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E11 Radio Addicts v Brit Poppers
In the third quarter-final, a doctor, a teacher, and an accountant with a unifying love of the radio return to challenge the brainpower of three Camden-based lynchpins of the British music industry.
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E12 In-Laws v Alesmen
In the last quarter-final, a family team featuring a patent lawyer, a graphic designer, and a business analyst return to the field of conflict to take their chances against a trio unified by their love of authentic cask-conditioned ales.
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E13 Epicureans v Wrights
In the first semi-final, three lovers of luxurious wines and exotic dishes set aside their shared passion to address the challenge of the combined wits of the Wright family.
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E14 Alesmen v Radio Addicts
In the second semi-final, three lovers of authentic beer lock horns with the cunning of a team bound by their love of the airwaves.
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E15 Wrights v Alesmen
In this play-off between semi-final losers, the Wright family combine their wits to take on the mental firepower of the Alesmen in a last battle for glory.
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E16 Epicureans v Radio Addicts
In the series finale, three committed gourmands set aside their love of fine foods to concentrate on the job in hand - battle for victory over the Radio Addicts, a team with the diverse combined knowledge of a doctor, a teacher, and an accountant.