The concept of Lost and that of Gilligan's Island is identical, isn't it? A group of people stranded on an island. I had been under the impression that the only difference was that strange things happened on Lost, while Gilligan's Island was more straightforward.
In any case, I used to refer to Star Trek Voyager as Gilligan's Island in Space. Again, same concept. A group of people stranded - in Voyager's case, on a spacecraft in a quadrant of space. Worst Star Trek series by far.