The Coolest start of a TV show EVER...
...has to be this:

www.youtube.com/watch?v=hrdatffT170&feature=related

Disagree? What would you say was the Coolest?
(Apathyman oh yeah, he gets gazs and everything, Thu 14 May 2009, 17:13, Reply)

Not technically the opening
But the entrance of Martin Sheen on the first episode of The West Wing. "I am the lord thy god".
( beckyjsbx FAH Q, Thu 14 May 2009, 17:27, Reply)

How about
www.youtube.com/watch?v=iC88U1SyQQw&feature=related
( The Light In Chains won't play poker with the Skull Spark Joker, Thu 14 May 2009, 17:30, Reply)

Oooh...
...good call - a funky beat AND uber-cool Robert Vaughn. A worthy choice, sah!
(Apathyman oh yeah, he gets gazs and everything, Thu 14 May 2009, 17:42, Reply)

I used to love this one as a kid.
www.youtube.com/watch?v=bDq6ngED15w

Then I got the DVD a few years ago, and it turns out I still know all the words...
Apologies for the poor quality, I couldn't for the life of me find a decent one that wasn't a fanvid.

This is pretty awesome too.
www.youtube.com/watch?v=WF-L7TaQR4A
(Applebite Bring back psychochomp!, Thu 14 May 2009, 18:22, Reply)

You're all wrong
FTW: www.youtube.com/watch?v=OZg74STOfig
(I Was a Teenage Spaceship, Thu 14 May 2009, 18:50, Reply)

You've taken me back to when I was four
My mum knitted me a Super Ted! it was all kinds of awesome.
(Potty Jag har smör i min rumpspringa, Thu 14 May 2009, 19:19, Reply)

Got to be this one
Huge machines? A hude explosion at the beginning? A cool baddie with light up eyes and mind controlling powers? Everything you could ever want from a TV show was promised in this intro, and it delivered.. www.youtube.com/watch?v=9RzCB3VRruE
(Potty Jag har smör i min rumpspringa, Thu 14 May 2009, 19:22, Reply)