Bill was one of the first adult actors I appreciated as a kid--right up till he died (way too soon) in 1993. "The Hulk" was one of my favorites, and so was "The Courtship of Eddie's Father". In both series', Bill portrayed intelligent sensitive men in difficult situations with dignity and compassion, never for once putting his needs before those of others. I haven't seen much of his other tv work, aside from made-for-tv movies, but from what I gather he could play cold-blooded types as easily and believably as sympathetic ones.
Bil Bixby left this world way too soon, and even at 74, which he would be today, I think he would still be working, both on and off-camera.