True, and I think we can safely say that he's still married to Susan, so hopefully she'll pop up and maybe even Miles or his nephew Chris. Oh, right. He's been around lately.
You do wonder though if he's still teaching or if he's retired by now. It would be interesting to see if that's brought up in an episode.
One disappointing thing though is I was sort of expecting Big Bird and Snuffy to show up. I thought I saw them in a promo for this episode. Maybe it's a different episode I'm thinking of. I don't know.