The clip I’m trying to find was from either the late 70’s or early 80’s. It was a comedy skit about a guy who sees lights in the night sky. They react to musical notes. The clip ends with the guy getting a pie to the face from the “UFO”. Sound familiar?
Close Encounters of the Third Kind (1977)?
Just found it. It was part of a group of short films on HBO in the 70’80’s called HBO shorts. This one was Closet Encounters of the Nerd Kind.
Glad you found it and thanks for telling us so we can mark it “solved.”