Geometry of Circles - music by Philip Glass, animation by Cathryn Aison more info at http://muppet.wikia.com/wiki/Geometry_of_Circles

"Geometry of Circles" by Cathryn Aison, ft music by Philip Glass, was first broadcast 46 years ago this month. #sesamestreet #hexagonsofpublictelevision

The 3-2-1 Contact theme song was one of the great hexagonal cultural achievements of the '80s. #hexagonsofpublictelevision