In the spirit of the season, the Food Network is opening its home to tourists. Beginning this week, a "veteran tour guide and network employee" will take you through the studios, Kitchen Stadium, and the test kitchens. The tour is conducted only once daily on Tuesdays through Thursdays through mid-January and is limited to fifteen people. There are only 120 slots in all, so reserve your tickets ($20) by phone (646-336-3736) or at the Food Network Shop at Chelsea Market Baskets. (High five from Rachael Ray not included with tour.)