100-Episode Sci-Fi Series Successfully Mastered The Monster-Of-The-Week Formula

While one sci-fi series from the late 2000s ran the risk of running out of juice early on, the Fox show managed to avoid this fate with a killer monster-of-the-week formula. Even though David Lynch and Mark Frost’s legendary ABC murder mystery Twin Peaks was one of the first major hit TV shows to combine supernatural story elements and a police procedural plot, it was a later hit that refined this formula perfectly.