I made a Grooveshark playlist capturing most (it’s really hard to get it all) of the music from the Wonder Years TV series. I used wonderyearsguide.com as a reference point. I’m not sure if the website is complete, but it covers quite a bit of music. Some songs that are notably missing are any Christmas songs. I thought they would take away from the playlist, since most people don’t care to listen to Christmas music outside of the season.
There’s a lot of great music from the 60s and 70s, and a few classical pieces as well. Let me know if there’s something notable missing, and I will update the playlist so long as Grooveshark has it available.