Watch This Thing - "Cracks," a rare 1975 animated short from "Sesame Street"

"Cracks" (or "Crack Master") is one of the most sought-out of "Sesame Street" shorts, and its notoriety became almost legendary over the years.  The tale of a youngster who images the cracks in his walls are creatures is still pretty great (especially if you can watch it unironically, though that may be tough with those who giggle at the thought of "crack" being every fifth word), and you can read about the history of this oddity here, and you can just watch it below: