I never knew exactly how Food TV works until I participated in a full scale production of a cooking show late last year. Looking through the photos, it was tedious. Here's one photo.
This was the dish I prepared and plated (Sous Vide Bresse Chicken will Corn done multiple ways - Sauteed Sweet Corn and Pop Corn Dark Muscovado served with Barley Risotto) and the cameraman was taking video from all angles of the dish.
If you want to watch how the cooking was like, head on to the Bosch Dream Kitchen Competition at: http://boschdreamkitchen.com/cookOff.html