Mister Rogers' Neighborhood (1968)

S13E7 Mister Rogers Talks About GAMES

Mister Rogers comes to visit with two wooden pieces gifted by Bob Trow. He uses his creativity to envision various possibilities for the wood before singing "You're Growing." Shortly after, Mr. Trow visits with what seems to be an ordinary chair, but Mister Rogers soon discovers that when the chair is paired with the wooden pieces, it transforms into a rocking chair.