Awesome shows!  Memories!!  *sniff*
I used to rock:
- 
Circle Square: Religious kid's show (funny that at the time, I didn't know it was so Jesus-freakish)
- 
The Great Space Coaster: Gary-motherfucking-GNU!
[img]http://mindgrove.net/coaster.jpg[/img]
- 
Buck Rogers:  Owned.
[img]http://web.media.mit.edu/~ryantxu/mas863/buckle/twink.jpg[/img]
- 
Superfriends:  Wonder Twins ACTIVATE!
- 
Scooby's Laff-a-lympics: So awesome.
- 
Hong Kong Phooey: #1 Super Guy!
- 
Bugs Bunny/Roadrunner Show: Fuck Tweety.
- 
Hulk Hogan's Rock 'n' Wrestling!: Man, that show owned.
- 
New Zoo Revue: MAN!!  God bless teh Interweb!  I've been racking my brain for years trying to remember the name of this fucking show!!
[img]http://www.newzoorevue.com/images/group2.jpg[/img]
Zee show's intro!  NO WAY!!!  
http://www.newzoorevue.com/MOV/longopen.mov
Holy shit...I'm 8 again.
There're a ton more (a lot of which have already been mentioned).  I loves me some nostalgia!