I'm not sure which episode, it may have been the "passion play" episode, but my eye caught a milli-second frame while Homer spun around while wearing a tunic or dress and flashed his manhood. I saw it in a re-run and never and never followed up on researching it. I thought it was an animator's triumph but have never heard or seen anything about it. I know I saw it. I really did. I'm not crazy. ps, this is a duplicate, I think my first attempt got deleted.