Mister Rogers' Neighborhood (1968) : 13x13

Mister Rogers arrives with a duffel bag and demonstrates the bag's zipper. Inside the bag, he has a pair of boots and another smaller bag with zippers. Mister Rogers mentions that zippers were originally called "clasp lockers" before he shows a film about how people make zippers. Following the film, Mister Rogers talks about asking questions when you're curious. In the Neighborhood of Make-Believe, the Trolley delivers the mail which includes a lesson on Native American culture for X the Owl from the Owl Correspondence School.