The beauty of this hack is that it encourages healthy snacking while not filling up the kids before dinner. From Jamie of Travel Savvy Mom:
Like most kids, mine go into a glassy-eyed fugue state when the TV is on. Then they immediately begin calling out, "Mommy, I'm hungry!" Since their prime watching hours occur between 3 and 5pm (while I'm scrambling to check homework, unload the dishwasher, fold laundry, make lunches for the next day, and figure out what in the world is for dinner), I put a platter of raw vegetables in between them on the couch. They almost always complain about my snack selection. And they almost always devour it.