That's right, it's coming back to me now. It must have been almost 30 years ago when I last that movie. Heck, I had forgotten the name of it also, until you mentioned it.
We used to have on Friday Nights, a scary movie show on ABC, back in the late 70's early 80's. everything from the classic Universal movies, to Godzilla films, but every now and then they would slip in an old Sci Fi show. I'm sure that is where I saw it.
Stephen