Das Millionenspiel.
It's The Running Man except twelve years earlier and a media satire instead of an action movie. It comments on TV phenomena that wouldn't exist in Germany until two decades later (like scripted "reality" TV). Also, it has early appearances of one of Germany's most famous TV hosts (as the show's host, fittingly) and one of Germany's most famous comedians of the 70s to 90s (in a completely serious role, unfittingly). And unlike the Schwarzenegger movie it doesn't construct a dystopian future to introduce public bloodsports but merely gives a terse reference to a "law on active recreation" dated three years after the movie first aired.
To make it even more odd, it's actually a good movie despite being from Germany and made for TV.