Haha, I hadn't watched that video before now. That's totally LII>IEE supervision right there. Ernie is worried, because every option he considers (the whole opening sequence is Base-Ne) results in Bert getting mad at him. In fact, the whole video he's worried about Bert being mad. It seems to me to be an obvious depiction of Supervision, where the Supervisee, no matter how hard he tries, can't please the Supervisor. In the end, Bert is only happy because there's pigeons, not because he thinks Ernie did anything right.
Also, the clip ends with this interesting exchange...
Ernie: "Are you mad now, Bert?"
Bert: "No, I'm not mad, Ernie."
Ernie: "Oh. Oh good. 'Cause sometimes it's kinda hard to tell, Bert."
I think all 1-d Fe types can relate to getting comments like that.
Heh, yes, awesome. It makes sense as an LII, whose Base Ti is constantly concerned with justice and fairness and making sure everything is "correct", getting annoyed at an IEE, whose Vulnerable Ti is usually oblivious to such things.
I'm more sure now than ever that Bert and Ernie are N-LII and C-IEE.
...and now I feel a little silly for analyzing Sesame Street so seriously.