Top 20 Fantasy, Horror, Sci-Fi and Super-Hero TV Series

1. The Walking Dead (AMC)
2. Game of Thrones (HBO)
3. Orphan Black (BBC)

4. The X-Files (Fox)
5. Firefly (Fox)
6. Penny Dreadful (Showtime)
7. Battlestar Galactica (SyFy)
8. American Horror Story (FX)
9. Twilight Zone (CBS)
10. Star Trek (NBC)
11. Roswell (WB)
12. Constantine (NBC)
13. The Flash (CW)
14. Supernatural (CW)
15. Once Upon a Time (ABC)
16. Jericho (CBS)
17. Doctor Who (BBC)
18. Gotham (Fox)
19. Heroes (NBC)
20. True Blood (HBO)