Mister Rogers' Neighborhood (1968)

S3E14 Growing from a baby into an adult

Rogers explores the concept of personal growth, both emotionally and physically. Mr. McFeely arrives with a dry aquarium containing tadpoles and frogs. Later, he takes a trip to the Westwood Children's Zoo. After spending two days with Dr. Frogg, Queen Sara makes her way back to the Neighborhood of Make-Believe from Westwood.