Mister Rogers' Neighborhood (1968)

S5E4 Episode 4

During a visit to Brockett's Bakery, Rogers finds out the mechanics behind a bread slicer. Meanwhile, in the Neighborhood of Make-Believe, the residents are surprised by the appearance of a loaf of bread that has magically floated in from the Owl Correspondence School. Inspired by this unusual event, X decides to sign up for a new course.