Hmm. Its kind of a hard question to ask, because most of the cartoons, that I like their theme song too...I never really "liked" until I got older. Or I never watched them as a child (or possibly an adult either. >.>)
I'll just post some good child show theme songs. Because the actual question is fairly impossible to ask.
(Watched as a child, but never really got into the show.)
(Haaaaaate this show. Also didn't see much of it as a child.)
(Never watched an episode of power rangers in my life, but they have some pretty good themes. :P)
(Okay I take that back, there's one particular theme and show I liked as a kid and still do.)
