Here in Detroit, the local NBC-TV affiliate station had at least a portion of the theme music that was from a clean copy. They would play that portion to block out the point where Don Pardo would say, "Stay tuned for Eye Guess (or The Who, What or Where Game)," since the station aired local news immediately following Jeopardy!
At first, Jeopardy! was bumped in favor of the news at 12:00 noon, but too many angry phone calls and letters from loyal viewers caused the station to bring back Jeopardy! and air the news at 12:30 p.m. instead.