[2] For several years after that, he performed on the road with his band Homebrew before moving back to Pittsburgh to take a master's degree in film and television from Carnegie Mellon University.
In 1973, Harrison and his friends, Dusty Nelson and Pasquale Buba, formed a film production company eventually named The Image Works to produce commercials and industrials in the Pittsburgh area.
The music that was composed for the score of Creepshow was also featured in the fake trailer for Thanksgiving in the film Grindhouse (2007), and the South Park episode "Tegridy Farms Halloween Special" (2019).
He was then tapped by producer Richard P. Rubinstein to direct Tales from the Darkside: The Movie (1990) for Paramount,[6] which won the Gran Prix du Festival at Avoriaz, France (1991).
[7] His action suspense thriller Blank Slate for producer Dean Devlin, which Harrison wrote and directed, aired as a twenty episode mini-series on TNT in the fall of 2008.