Mister Rogers' Neighborhood (1968)

Season 6: Episode 39

Rogers shows different kinds of potatoes and shows what happens if they are put in water for a while. He makes up a potato song. Mr. McFeely delivers an ocarina. At the Negri's Music Shop, a blue grass band is rehearsing and explains why their music is bluegrass. Chef Brockett plays an ocarina and decides to be a potato bug in the opera. John Reardon and Lady Aberlin are still planning the opera and need a king and a pilot. King Friday decides he can't be in the opera. François Clemmons will make a good king, and Miss Ito can be a pilot.