Oh how the tables have turned. Forget 'To Catch a Predator' how about 'To Catch a Cheater'?!

Host of the show that catches would-be internet sex pervs in televised stings, Chris Hansen, has found himself in the hot seat. The married NBC anchor has been caught on camera cheating on his wife! He was secretly filmed on an illicit date with his Florida TV-reporter girlfriend.

According to the National Enquirer, 51-year-old Hansen has been having an affair with Kristyn Caddell, 30, for the past four months.

Last weekend he was caught on camera taking Caddell on a romantic dinner date at the Ritz-Carlton hotel, before shacking up at her Palm Beach apartment. He was seen, leaving with luggage, the following morning.

"They were both wearing different clothes from the night before. Kristyn's hair was disheveled, as if she'd just rolled out of bed," a source told the Enquirer.

Hansen, who has two young sons, was caught in an undercover sting arranged by the Enquirer.

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Hansen lives in Connecticut with his wife Mary, 53. But recently he's been spending a lot of time, conveniently, in Florida covering the 2006 disappearance of Jimmy Trindade. He may not have an excuse to be there much longer, his story aired on last Friday's "Dateline".

Supposedly this is how he met Caddell. They were both out with friends at a Palm Beach bar.

"There was an immediate physical attraction between them," a source told the Enquirer.

"Chris and Kristyn got on so well that she ended up going back to his room at The Colony Hotel in Palm Beach -- and she later boasted to pals about staying the night with him," the source said.

The couple have allegedly continued to meet up in Miami and Palm Beach over the last few months, with Miss Caddell and her friends even flying to New York to spend a weekend boating with Hansen, the Enquirer reports.

According to the source: "Chris sends Kristyn flowers and tells her he loves her, but he still doesn't seem all that motivated to leave his wife for her."

"He's telling her he loves his wife too, but they've grown apart over the years, and she's not sure what he should do."

NBC News officials had no comment yesterday.

"This is just ridiculous. It's crap," a source close to Hansen told The New York Post.

"They've been friends for a long time, and there's no truth to this."

"There was no romantic dinner, and he didn't stay with her that night."

What do you think about Hansen being in the hot seat?

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And that's today's helping of Online Dish.