The X-Files made its debut on the Fox network on September 10, 1993. The original run of the show ran 9 seasons, with bonus follow-up short seasons airing in the mid-2010s. The show made Fox Mulder and Dana Scully, as well as the actors who played them, David Duchovny and Gillian Anderson, household names. The supernatural stories and conspiracy plot-lines made the show a breakout sci-fi hit for most of its run. Find fan t-shirts inspired by the X-Files here.