- The cast of "Gilligan's Island," from left, Russell Johnson, as the professor; Jim Backus as Thurston Howell III; Natalie ...

Missing Severance? We've refined all the data and come up with 15 more TV shows that will scratch that sci-fi itch.

Mystery box shows have been a common occurrence since J.J. Abrams devised the culture around Lost. Shows like these have plot ...