A man who took part in new Sky One series Nothing But The Truth has complained about the effect that the show had on his life.

The programme, which is fronted by Jerry Springer, invites contestants to answer 21 questions truthfully, while hooked up to a lie detector, in a bid to win £50,000. Their family and friends are asked to submit suggestions for questions which may be used on the show.

Stuart Broadband, 44, was forced to admit that he had once cheated on his wife Amanda and came close to sleeping with a prostitute abroad, when she told him that she had submitted questions about his fidelity.

"When he and 12 friends returned from his stag do in Amsterdam just before we got married in August 2001, there were rumours that one of them had paid a prostitute, only to find he was too drunk to perform," Amanda, who has vowed to stand by her husband, told the Daily Mail.

"Women's intuition told me Stuart had secrets. Stuart denied it was him, although I suspected otherwise. I decided to make it one of my questions, and when I told him he realised he had no option but to tell me the truth before it came out on the TV show."

Stuart said: "It sounded so simple to answer 21 questions and then win £50,000. But it's killing me that I've hurt and embarrassed Amanda so much. Both incidents were a long time ago and she's the only woman I want."

To make matters worse, Stuart went away penniless when the lie detector said that he had answered one question - 'Do you resent working for your father-in law?' - untruthfully.

"The worst thing is that the question about whether I'd had an affair wasn't used in the TV show," he added. "I wish I'd known, because I would never have told Amanda if I didn't think I had to. I can't change what happened, but it would have saved a lot of hurt."