Philip Glass, Sesame Street, bright colors and sharp angles

Gawker pricked a totally latent memory today with an old Sesame Street clip that I haven't seen since, oh, just about the Bicentennial or so:

Of course, at the tender age of three or four I wouldn't have known Philip Glass if he had walked out of our TV set and bopped me on the head, but in watching this today I distinctly remember being as mesmerized by the music as with the visuals, and trying to chant along.