Thanks to Lisa and Bart, Krusty the Klown is re-united with his father, Rabbi Hyman Krustofski (Jackie Mason).
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The Simpsons Season 3 Episode 6 Quotes

(singing) We've had lots and lots and lots and lots and lots of fun, but now the time has come... to go. If this old clown was found dead in his bed tomorrow, I'd be in heaven, still doing this show.

Krusty

Bart: Poor Krusty.
Lisa: A man who envies our family is a man who needs help.