4. ‘The X-Files’
“The X-Files” helped inspire a new generation of Americans to fall in love with conspiracy theories. David Duchovny (left) played FBI agent Fox Mulder who, along with his partner, Dana Scully (played by Gillian Anderson), uncovered extraterrestrial mysteries and tried to use science to explain the unexplainable. The show survived from 1993 to 2002 but quickly faltered when Duchovny went on to pursue a movie career.