31. The X-Files (Seasons 1-9)

Category: TV Action & Adventure
Stars: David Duchovny, Gillian Anderson, Robert Patrick, Annabeth Gish, Mitch Pileggi

Genre heads have been treated well by television executives as of late, with the high-quality standards enacted by The Walking Dead and American Horror Story. But at one time, lovers of all things supernatural were hard-up for scares and weirdness on the boob tube, which made the arrival of Fox's excellent The X-Files so exciting back in 1993. And for nine dense, intense, and often frightening seasons, paranormal investigators Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) kept the one-of-a-kind excitement alive.