Top 20 Historical Live-Action TV Series

1. Spartacus (Starz)

2. Rome (HBO)

3. Vikings (History Channel)
4. Band of Brothers (HBO)
5. Boardwalk Empire (HBO)

6. Deadwood (HBO)
7. The Kennedys (Reelz)
8. Hell on Wheels (AMC)

9. Black Sails (Starz)
10. John Adams (HBO)
11. The Pacific (HBO)

12. The Musketeers (BBC)
13. Carnivale (HBO)
14. Mad Men (AMC)
15. Mob City (TNT)
16. Da Vinci's Demons (Starz)
17. Generation Kill (HBO)
18. From the Earth to the Moon (HBO)
19. The Borgias (Showtime)
20. The Tudors (Showtime)

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)

Top 20 Action-Adventure and Crime TV Series

1. The Sopranos (HBO)
2. Breaking Bad (AMC)
3. Dexter (Showtime) 

4. True Detective (HBO)
5. The Wire (HBO)
6. Sherlock (BBC)

7. Homeland (Showtime)
8. Justified (FX)

9. The Shield (FX)

10. 24 (Fox)

11. Alias (ABC)
12. Luther (BBC)
13. Terriers (FX)
14. Burn Notice (USA)

15. Brotherhood (Showtime) 
16. Luck (HBO)
17. Southland (TNT)

18. The Following (Fox)

19. Leverage (TNT)
20. Chuck (NBC)

Top 20 Drama and Comedy-Drama TV Series

1. Entourage (HBO)
2. Californication (Showtime)
3. The West Wing (NBC)
4. House of Cards (Netflix)
5. Six Feet Under (HBO)
6. Cidade dos Homens (Globo)
7. Oz (HBO)
8. The Newsroom (HBO)
9. Friday Night Lights (NBC) 
10. Rescue Me (FX)
11. One Tree Hill (CW)
12. Sports Night (ABC)
13. Freaks and Geeks (NBC)
14. Suits (USA)
15. The Good Wife (CBS)
16. Touch (Fox)
17. Men of a Certain Age (TNT)
18. Treme (HBO)
19. Big Love (HBO)
20. My So-Called Life (ABC)

Top 25 Live-Action Sitcoms

1. The Big Bang Theory (CBS)
2. Seinfeld (NBC)
3. Friends (NBC)
4. That 70s Show (Fox) 
5. How I Met Your Mother (CBS)
6. The Inbetweeners (E4)
7. Fawlty Towers (BBC)
8. My Name is Earl (NBC)
9. Blackadder (BBC)
10. The Fresh Prince of Bel-Air (NBC)

11. Bewitched (ABC)

12. I Dream of Jeannie (NBC)

13. Two and a Half Men (CBS)
14. Bored to Death (HBO)
15. ALF (NBC)

16. 3rd Rock From the Sun (NBC)

17. Monty Python's Flying Circus (BBC)

18. Arrested Development (Netflix)
19. It's Always Sunny in Philadelphia (FX)
20. Blue Mountain State (Spike)