I remember that episode, although not the guy in an innertube part. To be honest, I havne't seen that much of the Simpsons. My mom had a hate on for it when I was a kid and banned it from the house, so I only ever saw the occasional episodes. To this day, she still changes the channel if someone in the house (and that includes my dad) is watching it and she catches them.

Oh my mom. *shakes head*