Gernot & Strudel was Klaus favorite childhood show.
German Wikipedia or "Viko-pedia!":
The show takes place in the "magical world of an old coat hanger factory."
Gernot is a worm and the flawless leader.
Next there's Kommandant Strudel Goofel-berry. A sassy hippo.
Then there's a two-headed blob, Uschi and Booshi. Uschi represents the sadness of the failed fall harvest. And Booshi represents the brief moment of happiness that washes over you before death.
Finally there's a talking file cabinet, Doctor Du-Du Dankers, who represents the perfection of the organizational skills that every German child dreams of, but nightmarishly never achieves.
In the episode of the same name, when the family finds that they cannot download the episode about sharing to teach Klaus a lesson, they decide to perform it themselves, with Stan performing as Gernot the worm, Jeff as Strudel, Hayley as Uschi & Booshi and Francine as Dr. Du Du Dankers. Klaus learns the lesson, but finds the family has no intention of continuing the show. Employing help from Dr. Weitzman, he turns the entire family into the puppets until he reveals that he accidently caused the death of the original cast. With the trauma off his chest, he frees the family and helps them get returned to their regular bodies.