Mister Rogers' Neighborhood (1968)

S5E37 Lady Elaine Flies into Space Pt 2

Rogers engages in some creative playtime with blocks and then shifts to molding clay. He later reaches out to François Clemmons to propose a role as a voice instructor. Meanwhile, Lady Elaine is determined to embark on a journey from the Neighborhood of Make-Believe to Jupiter. She dedicates her day to getting ready for this ambitious adventure.