Did Bert and Ernie go to college?

OK, so I was baby-sitting a 2- and 3-year-old. They wanted to watch Sesame Street before we went outside, because it was still kind of chilly out. A Bert and Ernie sequence begins:
*Ernie is talking on a banana*
Bert: What are you doing, Ernie?
Ernie: I'm talking to an elephant.
Bert: On a banana? How?
Ernie: Why, I'm using my imagination! You should try it Bert.
Bert: I don't know...
Ernie: Just try, Bert.
Bert: I'm not sure if I'm emotionally stable enough to handle this.
*But Bert takes the banana and tells the elephant about how he likes bottlecaps and pidgeons.*
I kid you not, Bert actually used the words "emotionally stable". If you watch these shows, there is humor stuck in for all the parents and baby-sitters out there.
On my sidenote: Did anyone notice that I've been spelling "sidenote" incorrectly this entire time? It's "side-note".