Mister Rogers' Neighborhood (1968)

S1E26 Jamie Rogers visits

In episode 0026, Mister Rogers arrives carrying a baby doll tucked in a bag. He talks about growth and demonstrates how to change the doll's diapers. A friend drops by with his 5-month-old baby for a brief visit. Nurse Miller reassures Tadpole Frogg that he is developing just fine. Later, Mr. Rogers shares a video of his eldest son, Jamie, at 14 months old. Now 8, Jamie comes to visit and joins his dad in singing the "Tomorrow" song before they head out together.