Star Trek: The Next Generation. But I don't know if that counts because the theme was already used in the movies.
The Wonder Years!!! With Cheers as the runner up. (Even though this song scared the hell out of me when I was little)
Daria theme song by Splendora: la la la la la This is my stop Got to get off I may go pop Excuse me, Excuse me I've got to be direct la la la If I'm wrong, please correct la la la You're standing on my neck Look right through me Say I'm gloomy Well so sue me Excuse me, excuse me I've got to be direct la la la Its like a big train wreck la la la Your standing on my neck la la la Your standing on my neck la la la Your standing Nothing is like I planned it So funny I cant stand it Wish I was made of granite I must be on another planet la la la la la la la la la la This is my stop I've got to get off I may go pop Excuse me, excuse me Ive got to be direct la la la If I'm off please correct la la la Your stadning on my neck la la la You standing on my neck la la la Your standing on my neck la la la la la X15