Seriously, Philip Glass? And all this time I thought his first project for children's television was the South Park Christmas Special. Now it turns out he did at a trippy composition for a set of animated color wheels. Did anyone besides the inventor of Trivial Pursuit see this when it aired?
And when did it air? The Muppet Wiki entry on Glass says it was created in 1977, but didn't air until the 1990's, as at least four separate 30-40 sec. segments. But I find it hard to believe that the same era of Children's Television Workshop that brought forth Elmo would show unabashedly abstract eye candy backed by America's droner in chief.
Whatever, they're here now. YouTube user and Street aficionado yootoobsuxx [classy] combined all four rather convincingly into one 2:40 clip.