Who's Cooking in the Kitchen?

Have you ever watched a cooking show on the Food Network and said to yourself, "One day I am going to go to that chef's restaurant?"
I've said that many times and one day I will. But I was just wondering, "When does a celebrity chef actually cook in the kitchen?"
Bobby Flay, at last count, has two restaurants in New York, one in Altantic City and one in Las Vegas. Plus he appears on the Food Network's "Iron Chef America," "Throw Down With Bobby Flay," and "Boy Meets Grill."
And even though I think Tom Colicchio is too cute to be sweating over a hot stove, when does he get a chance to cook at any of his restaurants in New York, San Francisco or Las Vegas, when he is busy taping Bravo's "Top Chef?"
I guess when I do make a reservation at a restaurant with a famous chef, I should first ask, "Who's Cooking in the Kitchen?"