No, They Don't Have Extra Duties...

It's just my random guess, but I don't believe the chefs who do their chopping and mopping, braising and grazing, and slicing and dicing on T.V. have children to get to school, a load of white clothes in the dryer, a grant proposal to finish, and one child who can't-find-her-6th-grade-planner-that-needs-to-be-signed-or-she-will-get-a-zero.  Just my guess. I could be wrong.