Fran Drescher---who had here guest starred twice---would often "borrow" from this sitcom. This "on a billboard" premise would, a decade later, thus become a "TV trope", as she would make her own Love Is a Many Blundered Thing (1996) revolve around a billboard, and so would Cybill Shepherd with her own All of Me (1997).
Personal opinion of writer, not trivia at all.