I was re-watching the Davy Jones episode and wanted to see who wrote the song "Girl." All it said was the usual, "music by Devol." Sure enough, if you listen closely you'll hear similarities between the instrumentation and melodies in this song, and the theme song and other incidental music in the show. Think about all the great songs...

We can make the world a whole lot brighter

Time to change

Spaceship Model T-A

You've got to be in love to love a love song

Sunshine day

Devol was also featured in the comedy variety "Fernwood Tonight" with Martin Mull. He played the bandleader.