The Transformers Theme

The opening song used for Seasons 1, 2, 3 and 4 of The Transformers all shared the same lyrics but different backing music. Season 1 and 2 both shared the same unique instrumental for the end credits (also used by Omni Productions as the ending theme to Transformers: The Headmasters, Transformers Super-God Masterforce and Transformers Victory) but Season 3 and 4 both just used the instrumental for the opening.