The flashback of Mr. Rogers with Jimmy as a kitten was from episode 1558, "Making and Creating (4)," which originally aired almost five years before.
Mr. Rogers: You may have some pictures of yourself when you were a baby or a young person. You save those pictures because there will be a day when you get grown up that you'll want to look back and see how much you've grown--outside and inside.
Mr. Rogers: You know, learning new things like songs, and new words, and thinking about neighbors and friends are all ways of growing--growing inside. And part of the fun of that kind of growing is that it can go on all our lives.
Neighbor Aber: If we can all talk and think and feel peace, we'll all be the better for it.
Rogers introduces a clay figurine of Purple Panda in this episode. It will be the only time after the conclusion of "Fun & Games" week that a clay figurine of a Make-Believe character would be used.