Relax, Airplay, you are looking too much into it.
Yes, you are correct in the meaning of Itch and Scratchy (the voice of Maude Flanders, among other characters, flies Frontier I found out. Chatted a storm with her when I called for a schedule change), however, people may like it for the satyrical nature of the particular episode, becuase of the reason you stated.
As for the original question, the barbershop episode is my favorite. That or the one with Homer as the dog
Frontier - A Whole Different Animal (Beach ball - check, Suntan lotion - Check, thong - check)