1.
Alien Nation (1989-1990): This series was largely a metaphor for race relations dealing with issues of prejudice and racism. By having a group of alien newcomers land on Earth and then adapt to our World was a great idea for a series. The show, based on the earlier 1988 film, would only last one season but would spawn 5 TV movies as well, most of which weren't too bad.
The List
1. Alien Nation (1989-1990)
2. Police Squad! (1982)
3. Firefly (2002)
4. Johnny Staccato (1959-1960)
5. The Adventures of Brisco County, Jr. (1993-1994)
6. When Things Were Rotten (1975)
7. Do Over (2002)
8. Second Chance (1977)
9. Andy Richter Controls the Universe (2002-2003)
10. Grosse Pointe (2000-2001)
11. Battlestar Galactica (1978-1979)
12. Danger Theatre (1993)
13. The Honeymooners (1955-1956)
14. Freaks and Geeks (1999-2000)
15. Mister Terrific (1967)
16. Captain Nice (1967)
17. Blade: The Series (2006)
18. Charlie Jade (2005)
19. Miracles (2003)
20. The Tick (2001-2002)
21. Photon (1984)
22. The Lone Gunmen (2001)
23. Harsh Realm (1999-2000)
24. VR.5 (1995)
25. The Silver Surfer (1998)
26. Space Rangers (1993)
27. Tate (1960)
28. The Young Indiana Jones Chronicles (1992-1993)
29. Mr. Merlin (1981-1982)
30. Cop Rock (1990)
31. The Omega Factor (1979)
32. The Dresden Files (2007)
33. Wonderfalls (2004)
34. The Others (2000)
35. Korgoth of Barbaria (2006)
36. Three's A Crowd (1984-1985)
37. Fantasy Island (1998-1999)
38. Brimstone (1998-1999)
39. The Visitor (1997-1998)
40. Vengeance Unlimited (1998-1999)
41. Andy Barker, P.I. (2007)
42. Alcatraz (2012)
43. The River (2012)
44. The Flash (1990-1991)
45. RoboCop: The Series (1994)
46. M.A.N.T.I.S. (1994-1995)