The Rabbit Mascot "Der lustige Glückshase" of the HSP also appeared in Kein Pardon (1993) as a show-mascot. Also the character Uschi Blum has an appearance in both films.
Bernhard says "And good night" the same way Bertram says it at the casting and television scene in "Kein Pardon", later he says "The one from earlier was good" just like Bertram in the older movie