If you can't stand the heat, get outta the kitchen 'cuz tonight is going to be hot with the finale of Top Chef Masters and the premiere of Top Chef! Padma Lakshmi, Las Vegas and amazing food? Life can't get any better. Wednesday, August 19 9:00pm Top Chef, Bravo (1 hr and 30 min) SEASON PREMIERE Viva Las Vegas, baby! Top Chef is back with 17 news chefs all vying to become top chef and this time they’re taking the action to Sin City. Among the fresh faces are three out chefs: Ashley Merriman, Ash Fulk, and Preeti Mistry. How far will they go? Better watch and find out! 9:00 pm Bad Girls, Logo (1 hr) NEW The hit British series continues to delve deeper into the drama, love and betrayal that unfolds between the inmates, correctional officers, and prison administrators of the Larkhall women’s prison facility. 10:00 pm The Real World: Cancun, MTV (1 hr) NEW Watch and see what kind of shenanigans gay housemate Derek and bisexual Emilee get into this week as all eight housemates continue drinkin’ and soakin’ in the Cancun sun! 10:30 pm Top Chef Masters, Bravo (1 hr) SEASON FINALE While all the fabulous flare have packed up their knives and left, we might as well find out who the master is tonight, as the remaining chefs cook a four-course meal from memory. Guests include previous "Top Chef" winners Harold Dieterle, Ilan Hall, Hung Huynh, Stephanie Izard and Hosea Rosenberg.