Did SASUKE really invent the Salmon Ladder?

[Sitthideth Keophothong]

I’ve just watched SASUKE Vietnam 1, and since I understand Vietnamese, I learned that Vietnam used to have a show similar to SASUKE called “Tro choi thi dau lien tinh” (Multi-city obstacle course), or “Tro choi lien tinh” for short. So, I decided to do some research about this show. I googled the name of the show, and it led me to a thread about this show in a Vietnamese forum.

According to this thread, there is an obstacle similar with the Salmon Ladder in “Tro choi lien tinh”. And since the show ended before SASUKE was born, that means SASUKE didn’t invent the Salmon Ladder.

There is no footage of “Tro choi thi dau lien tinh” on Youtube , but according to the thread, “Tro choi lien tinh” was based on a German show, so if you have watched a show similar to SASUKE before 1997 in Germany, please tell me the name of the show, and I will try to find that obstacle on the Internet. Thank you .

This is a footage of the German version of "Tro choi lien tinh", but I can't get the original name of the show from this footage :

[Sitthideth Keophothong]

Well, I've just found the French version of the show ("Intervilles"), and it has an easier version of SASUKE's Salmon Ladder. Well, that means SASUKE actually invented the Salmon Ladder, and I was wrong .

[Mappyon]

It's not an easier version imo, just a different one, it's still very much an upper body strength obstacle and even though the guys doing it have a surface to lie on, it's slippery and much longer to complete than Sasuke's salmon ladder. Intervilles also started in the 60s and that wall thing is one of the most iconic parts of the show and it definitely existed long before 1997 (or well, 2007 since according to the wiki, the salmon ladder was only introduced in Sasuke 18).
That being said, the salmon ladder could or could have not been inspired be Intervilles' wall ladder thingy just like Kunoichi's pipe hold could or could have not been inspired by Fort Boyard's cylinders room but we might never know.