To steal from
lyore...
Radio Times Greatest Sci-fi TV Shows Of All Time: strike if you hated; bold if you've seen them all; italicise if you've seen more than one whole episode:
0. Doctor Who
1. Red Dwarf
2. The X-Files
3. Lost (My sister watches it... that's my excuse...)
4. Life on Mars
5. Buffy the Vampire Slayer (Though how is this sci fi? I don't seem to recall any spaceships... :P)
6. Star Trek: The Next Generation (I must shamefully confess to liking Voyager better though :p)
7. Stargate SG-1
8. The Hitch-Hiker's Guide to the Galaxy (Errr...I saw the movie, none of the tv series)
9. Star Trek (original series)
10. Quantum Leap
11. Heroes
12. Blake's 7
13. Twin Peaks
14. V
15. Torchwood
16. Babylon 5
17. The Prisoner
18. Battlestar Galactica (2000s) (I should really get beyond S2... LOL.)
19. Thunderbirds (I was pretty young, but I know I saw a couple of eps of this...)
20. Lost in Space
21. Farscape
22. Batman
23. The Incredible Hulk
24. The Six Million Dollar Man
25. Wonder Woman
26. Sapphire & Steel
27. The Avengers
28. The Twilight Zone
29. Primeval
30. Battlestar Galactica (1970s)
31. Lois and Clark: the New Adventures of Superman
32. Space: 1999
33. Captain Scarlet and the Mysterons
34. Quatermass (four series)
35. UFO
36. Sliders
37. Buck Rogers in the 25th Century
38. Survivors
39. Doomwatch
40. Land of the Giants
41. The 4400
42. Millennium
43. Jekyll
44. The Outer Limits
45. Xena: Warrior Princess
46. The Time Tunnel
47. The Invisible Man (1984)
48. Adam Adamant Lives
49. Alien Nation
50. A for Andromeda
Wow.. apparently I need to watch more sci fi...
I do however protest that the following series aren't on it: Andromeda, Star Wars (there's several different tv series! I'm sure it counts... it has more episodes than Hitchhikers... :P), Dark Angel, ST: Voyager, ALIAS (alright its more drama than scifi, but I figure it has enough fantastical tchnology and fantasy/prophecy elements to count), Roswell, Tru Calling, Angel, Taken, Ocean Girl Power Rangers (I think I've seen a whole episode... maybe. Definitely seen bits and pieces), Firefly, whatever that sci fi series was on ABC last year - SilverSun maybe?... Plus more but I'm getting lazy :P
And where's Mystic Knights of Tir Na Nog, huh? I loved that show as a kid...