 A twenty-year musical collaboration ensued, yielding several TV theme songs, including “Drive” and “Back To Back” for “Hardcastle & McCormick”, “My Opinionation” for "Blossom", and “Believe It Or Not” for "The Greatest American Hero", which rose to the #1 position on the Record World Chart and to the #2 position on the "Billboard" Hot 100 in 1981.Geyer has the distinction of being the original songwriter (music & lyrics) for all 30 of the original episodic songs recorded for "The Greatest American Hero".He also has written other material for a variety of Stephen J. Cannell productions, including "The A-Team", "Riptide" and "Stingray".