TBS' Real Gilligan's Island hasn't even premiered and I'm already lost. The cabler revealed Tuesday that when the reality spoof debuts Nov. 30, viewers will be treated to two sets of castaways that will go head-to-head in a series of challenges inspired by plots from the '60s show. "It's Ginger versus Ginger, Mary Ann versus Mary Ann, Professor versus Professor and so on until we have our final seven," producer Mike Fleiss tells the Associated Press. "Then the game changes." Baywatch babe Nicole Eggert will play Rachel Hunter's Ginger twin, while the rest of the cast will be populated with Surreal Life bait.