"Boxcar Pop" is an episode from The New Yogi Bear Show (1988).

In this episode, Yogi Bear and Boo Boo encounter a traveling circus that arrives in Jellystone Park, and among the performers is a jolly old man known as "Boxcar Pop." Boxcar Pop is a former circus clown who now travels the country with his collection of old circus props and memories. He becomes the subject of Yogi's curiosity, and naturally, Yogi sees the circus as an opportunity to cause some mischief and, ideally, snag a picnic basket or two in the process.