Honestly i don't know which one to choose, so that's why i decided to link my them

Game of Thrones
http://www.youtube.com/watch?v=s7L2PVdrb_8

Battlestar Galactica - Re-imagined
http://www.youtube.com/watch?v=l4UPJv08c1k

Stargate Atlantis
http://www.youtube.com/watch?v=4VI9p-rqHe4

Stargate SG1
http://www.youtube.com/watch?v=dR90P1GhZA4

Deadwood
http://www.youtube.com/watch?v=B909njPoX7k

Star Trek : The Next Generation
http://www.youtube.com/watch?v=HN-q09wRG70

Star Trek : Enterprise
http://www.youtube.com/watch?v=urYH6xEyXw0

Doctor Who
http://www.youtube.com/watch?v=BwJtYmNpINI

The Outer Limits
http://www.youtube.com/watch?v=2I7vPbthvWo

Millennium
http://www.youtube.com/watch?v=SkfLnXIFi4U

Cartoons / Animated shows

Teenage Mutant Ninja Turtles
http://www.youtube.com/watch?v=D2LVOYQNrxc

Batman : The Animated Series
http://www.youtube.com/watch?v=m-u07UEDT5I

Batman Beyond
http://www.youtube.com/watch?v=DVdTbiLku48

Super-Man : The Animated Series
http://www.youtube.com/watch?v=oUcKJflBG8Q

Justice League
http://www.youtube.com/watch?v=p81_kAFdyr8

90's Spider-Man
http://www.youtube.com/watch?v=_RKl1lfNrIc

Freakazoid
http://www.youtube.com/watch?v=bpjXFF0zIJY

Animaniacs
http://www.youtube.com/watch?v=KA0TS9l_nJE

Ducktales
http://www.youtube.com/watch?v=_RKl1lfNrIc

Chip'n Dale : Rescue Rangers
http://www.youtube.com/watch?v=_RKl1lfNrIc

Moomins
http://www.youtube.com/watch?v=H2lgDYbXAZo

Lucky Luke
http://www.youtube.com/watch?v=dwlspR4zfT0

Quack Pack
http://www.youtube.com/watch?v=YtnjqPMiXK8

Goof Troop
http://www.youtube.com/watch?v=iqE74c54Nfc

Biker Mice From Mars
http://www.youtube.com/watch?v=NJPYmd8_Qdw&feature=fvwrel

Extreme Ghostbusters
http://www.youtube.com/watch?v=DEpCUB8IjzM

Invader Zim
http://www.youtube.com/watch?v=d6k12Z-XjNQ

Power Rangers - Series 1
http://www.youtube.com/watch?v=FpcCoW5gA7w

Anime
Ninja Scroll
http://www.youtube.com/watch?v=RWILdBH34JA

Berserk
http://www.youtube.com/watch?v=gehVV82SX6o

Dragon Ball
http://www.youtube.com/watch?v=qfZL3A-52PM

Death Note - both intro's are awesome
http://www.youtube.com/watch?v=2o2xbHOlqj0

After all these years, this is still my favorite:

The Persuaders:
http://www.youtube.com/watch?v=t99QQIXez4M

DeadWood, Rome, Dexter, The Wire S1, Carnivale are some of my favorites.

New Outer Limits

Dexter

Big Love.

In that order.

I love this one :)
http://www.youtube.com/watch?v=s16bLK25F80

Bokurano Ours: http://www.youtube.com/watch?v=05p646nlYS0
A beautiful theme to a depressing series.

Digimon: http://www.youtube.com/watch?v=99qbst8qj0s

Not much I can link to, you guys have hit on most of what I was going to link