Square Lecture?

[Clean Glutch]

I got an old clip recorded on a video from Plaza Sesamo which has a the purple live-hand anything muppet talking about sqaures and cookie monster is in the sketch. it appears to be a very early skit possibly from the 60s or 70s. i had asked about this sketch a long time ago back when MC was still on delphi forums but i cant remember that far back. does anyone have any idea what im talking about?

a few more details about the sketch are it appears that the AM is showing where a square goes in different pictures and cookie shows up towars the end from what i remember