Three data-lovers take on a team of Terry Pratchett fans in the opening heat of the series.

Three Jilly Cooper fans face a team of road runners in another opening heat.

Three followers of fashion take on a team comprising a mother, a daughter, the daughter’s cousin and the mother’s niece. No, the format hasn’t changed: that’s still only a team of three.

Three puzzle fans compete against a team of mature students.

Three teachers from Brighton take on three Blackadder addicts in another opening heat.

There’s a former MP on one of the teams.

One team are rugby supporters, and their opponents are admirers of crustaceans.

A family team take on three Sherlock Holmes aficionados.

The series reaches the knock-out stage.

Two bird-named teams take part in an avian stand-off to establish a pecking order.

In another knockout match, one of the teams works out what connects four clues after only seeing two of them: Narnian donkey and Edinburgh-based detective.

Three Pratchett people take on a team of Jilly Cooper aficionados.

Three sitcom fans take on a team with a passion for the performing arts.

It could be covered with duct tape, rubbed with raw meat, have dandelion milk dripped on it, or be frozen. But why would anyone want to? Victoria is on hand to explain.

Two returning teams fight for a place in the next round.

A rematch between two teams who met in a previous round.

Two family teams battle it out to stay in the competition.

There’s a place in the next round on offer.

A semi-final place awaits one of the two returning teams.

Six contestants in search of a semi-final place must deal with a series of tricky questions.

It’s the first of the semi-finals, and the pressure is on.

It’s the second semi-final, but the series structure means the teams have met before.

The final can wait, because this episode is the third place play-off.

It’s the grand final, and Victoria and the teams are joined in the studio by two sparkling guests.