Lost should've been a three-season series, or maybe it should have ended after two. The first season set up the story brilliantly, and introduced us to one of the most interestingly original casts of characters TV has ever seen. But instead of bringing it all home over the course of another season or two, the show subjected us to years and years of often-tedious teasing, dragging the mystery out for so long that only the most diehard fans remained loyal. And after a while, despite statements to the contrary, I couldn't shake the feeling that Lost's producers were simply making it up as they went along.
Even though Lost is of the air it still has a HUGE fan base so to me it still makes the show a little over rated.