Produced by Mighty Productions Scotland, the six-part series will see teams of three players start with £1 million and attempt to correctly answer seven general knowledge questions to keep the jackpot intact. Every right answer locks in a digit of the One and Six Zeros jackpot. Every wrong answer, however, loses a zero from the prize fund, and the money can quickly decline from £1 million to £100.

After three questions the team is then reduced to two players. After five questions, only one player remains to answer the final two questions and secure the prize money.

There is a lifeline: if the team do not want to risk answering a particular question, they can swap for a different one. However, swapping questions comes at a price for the team.

Dara Ó Briain said: “I’m delighted to host this new quiz show for Channel 4 and Mighty Productions. It should be funny and tense and you, at home, will definitely think you could have done better than the contestants. Plus, I get to keep any of the money they don’t win! I think that’s the deal, I didn’t read the small print.”

Jo Street, Channel 4’s head of Daytime and Features, commented: “Having one million pounds up for grabs in a quiz is thrilling and it also makes me feel a bit sick.

"One & Six Zeros is a really clever format which the audience will be able to play along with, and Dara is the perfect host to steer the contestants through the nerves, the laughs and the drama of potentially winning a life changing amount of cash.”