Do you know this man? You should.
20-year old Michael Cade played Sly Winkle (yes, that was his name), the fast-talking, scheming manager of the band. Oddly, Sly was not the least concerned with heterosexual hookups. He liked modeling, wrestling, surfing -- anything that required his shirt to be off -- but he only dated girls in two or three episodes, and they were all designed to give him a comeuppance rather than demonstrate girl-craziness.
They may be difficult to find, but they're worth seeking out. Even without the shirtless shots.
Michael is a gifted performer, and his characters are usually immersed in groups of male friends, with no hint of a quest for heterosexual romance.
See also: Weird Science.