The self-titled "Prism" album was released on GRT (Ariola Records in the US) in May 1977. Although Ab Bryant appears on the back jacket, he'd actually only been hired days before the photo was taken. But within a few months of the album's debut, Bryant exited the group to join the Rocket Norton Band, later joining Chilliwack (and later still, The Headpins). Lavin switched back to bass in Bryant's absence and Sunshyne's trombonist, Ralph Eppel, joined alongside adjunct members Bruce Fairbairn and Tom Keenlyside in Prism's horn section for their ensuing tour (with Vallance still drumming as "Rodney Higgs").