https://muppet.fandom.com/wiki/The_Br...
From Seasons 12 and 13 (1981). In looking for videos that used to be on SesameStreet.org, I found the "triangle" clip which is in better quality than the version sawing14s uploaded a long time ago. So I decided to just combine all three into one upload: "Circles" from sawing14s, "Squares" from NantoVision1, and "Triangles" formerly from SesameStreet.org.