Episode 1 | Al Frescans v Midlanders

Victoria Coren Mitchell returns with the opening heat from the twentieth series of the quiz as three fresh air fanatics take on a trio of Midlanders.

Episode 2 | Hopsters v Sprouters

As Victoria Coren Mitchell presents the second heat from the opening round of the twentieth series - one of the teams likes beer while the other has a bit of a thing for big vegetables - the bigger the better, apparently.

Episode 3 | Four Opinions v Bean Farmers

Four Opinions are a team of three people who like to agree to disagree. In this first round match they take on the Bean Farmers - a trio of friends united by their love of the German card game Bonanza (in which players farm beans).

Episode 4 | Harmonics v Cat Cows

A love of classical music has brought one team together and a yearning for yoga unites the other - but both teams are bound up in their devotion to quizzing. Victoria Coren Mitchell presents this match from the opening round.

Episode 5 | Too Many Cookes v Pipe Dreamers

A team of pipe-dreamers take on the Cooke family in this first round encounter.

Episode 6 | Bloomsbury Group v Tea Totallers

In this first round match-up a team of literary enthusiasts face a team of three tea devotees.

Episode 7 | Third Agers v Introverts

Three introverts take on three representatives of the University of the Third Age

Episode 8 | Uisge Beathas v Crunchers

Three whisky drinkers take on three number crunchers this week, all seeking the link between apparently random clues.

Episode 9 | Hopsters v Midlanders

Victoria Coren Mitchell hosts as the Hopsters take on the Midlanders, who must use patience, lateral thinking and sheer inspiration to make connections between four things that may appear at first not to be linked

Episode 10 | Harmonics v Bean Farmers

Undeterred by having been beaten in the missing vowels round last time, the Harmonics are back to take on three devotees of a German card game.

Episode 11 | Pipe Dreamers v Tea Totallers

Victoria Coren Mitchell presents the quiz. Three fans of surrealism take on a team of tea enthusiasts trying to establish the connections between seemingly random clues.

Episode 12 | Uisge Beathas v Third Agers

Victoria Coren Mitchell presents the quiz where knowledge only gets you so far. A team of whisky lovers returns to face a team from the University of the Third Age.

Episode 13 | Al Frescans v Sprouters

Three fresh air fanatics take on a team that has a bit of a thing for large vegetables in this edition of the quiz.

Episode 14 | Four Opinions v Cat Cows

Victoria Coren Mitchell hosts another edition of the brain teasing quiz. This time a team whose members agree to disagree take on a trio of yoga practitioners.

Episode 15 | Too Many Cookes v Bloomsbury Group

Victoria Coren Mitchell presents the quiz. Tonight, members of the Cooke family take on a literary team.

Episode 16 | Introverts v Crunchers

A team of three Introverts take on a team of number crunchers in this edition of the quiz.

Episode 17 | Harmonics v Cat Cows

The knockout stages of the quiz get underway with this rematch. A trio of classical music buffs take on a team with a yearning for yoga.

Episode 18 | Hopsters v Al Frescans

Victoria Coren Mitchell presents the quiz show. It is the knockout stages so one of these teams will be going home. A trio of beer lovers take on three fresh air fanatics.

Episode 19 | Uisge Beathas v Crunchers

Victoria Coren Mitchell presents the quiz show. Three whisky drinkers take on a trio of number crunchers. When these two teams faced each other before the Crunchers barely won, so there is a score to settle.

Episode 20 | Royal Special

Victoria Coren Mitchell presents the 1st of a series of special editions of the quiz broadcast across the festive period. The Vikings, from series 13 (2017/18) face the Antiquarians from back in series 5 (2011) in a Royal-themed e...

Episode 21 | Christmas Special

It's Christmas, and two family teams return for Only Connect's most Christmassy Christmas Special yet. The questions have the Yuletide flavour, and a team of three specially invited guests dazzle everyone with a spectacular festiv...

Episode 22 | Books Special

Two teams from previous series, both taking their names from giants of literature, face fiendish, bookish questions.

Episode 23 | BBC Special

Two teams from the very first series return to celebrate 60 years of BBC Two.

Episode 24 | Transatlantic Special

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.

Episode 25 | Single Special

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far. It's the 'single special', celebrating singles, solos and everything that comes in groups of one.

Episode 26 | Sound Special

Two teams from previous series return, but there's a twist to the format - nearly all the questions are audio only. For example, in the Missing Vowels round, nobody gets to see the letters, only hear them.

Episode 27 | Champions Special

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far. It's everyone's dream to be a champion, and it's every champion's dream to beat another champion. Now is their chance.

Episode 28 | Too Many Cookes v Tea Totallers

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far. More high scores, but only one team can progress to the next round, and the clues are getting trickier.

Episode 29 | Cat Cows v Sprouters

Yoga lovers and veg men vie for victory and a place in the next round. They face such questions as: what connects verb, abbreviated, monosyllabic and hyphenated?

Episode 30 | Al Frescans v Four Opinions

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far. The Four Opinions won their previous game on a tiebreak, but what does fate have in store for them this time?

Episode 31 | Bloomsbury Group v Crunchers

Two teams face off in an attempt to get through to the semi-finals. What connects the following: excels, robust, Liberec and Arabic?

Episode 32 | Introverts v Tea Totallers

There's a place in the semi-finals at stake and, as is only to be expected, the questions are getting more fiendish. For example: first wife, almost old, forty-one and Ghost Wolf - what is the connection?

Episode 33 | Semi Final - Four Opinions v Cat Cows

It's semi-final time, and a coveted place in the third-place play-off is at stake. The teams are on form, with this sequence question being answered after just two clues: 13: Anne of Austria, 14: Maria Theresa of Spain,what comes ...

Episode 34 | Semi-Final - Tea Totallers v Crunchers

The second semi-final goes to the wire in the missing vowels round, but before that, some tricky sequence questions must be dealt with.

Episode 35 | Third Place Play-Off

It's the third place play-off, and the questions have grown suitably difficult. For example: Pelham and Hope, Curb and Fosse, Gag and Marley, and Snaffle and Geldof - what's the connection?

Episode 36 | The Final