He’s the Strictly judge who delights in picking contestants up on their mistakes, so Craig Revel Horwood should be feeling a little sheepish after admitting he once gave a celebrity dancer the wrong score by accident.

Revel Horwood told comedian Sarah Millican on her BBC2 show, airing tonight, that he mistakenly showed a score of four to a contestant he had intended to award seven points.

"Because it was a low score, I then had to find as many things wrong with it as I could," he said. 

"I remember it was a four but I wanted to give a seven, you see, so it was a bit of a disaster. It's live television – what can you do, darling?"

Revel Horwood didn't name the unlucky star, but he was happy to tell Millican which contestant he thought had been the least talented dancer ever to appear on the show – former Top Gear presenter Quentin Wilson.

Watch Sarah Millican chatting to Craig Revel Horwood, plus Spice Girl Mel C and the stars of Casualty, from 10pm tonight on BBC2.