In this show three celebrities have to judge people about their knowledge, habits etc., so it is all about knowledge of human nature.

At the end of the show the three "stars from the street" (Strassenstars) have to face a little challenge to earn symbolic EUR 10,00. Every know and then it is a messy or wet challenge.

Here are the shows with that kind of challenges.

Go to round about 0:27:00 min of the videos to find out, if that last challenge was accepted or not.

... and as always I do not know about geo blocking.

https://www.ardmediathek.de/video/strassenstars-classics/strassenstars-vom-05-11-2023/hr-fernsehen/ODU4NmVkMWQtZjg4Yi00ODE2LTg1NWEtMDYwYWVlMTY0ZGVj
(pie in the face)

https://www.ardmediathek.de/sendung/strassenstars-classics/Y3JpZDovL2hyLW9ubGluZS8zODIxMDI1Nw
(water over head)

https://www.ardmediathek.de/video/strassenstars/strassenstars-vom-19-11-2023-s04-e01/hr-fernsehen/ZjZiYTI4YmItZTcwYi00YzVjLTlkYTktMWVmYTlmNTNjYmU1
(pie in the face)

https://www.ardmediathek.de/video/strassenstars-classics/strassenstars-vom-16-07-2023/hr-fernsehen/M2RkMmY5NGQtNzczZC00MWRmLTlmNTQtNzY2MTdiNDMwZGFi
(egg on head)

https://www.ardmediathek.de/video/strassenstars-classics/strassenstars-vom-04-06-2023/hr-fernsehen/Y3JpZDovL2hyLW9ubGluZS8yMDM5NDE
(water over head)