In Poland Canal+ was encrypted like this: https://www.youtube.com/watch?v=Z83bIGiRVy4

I'm guessing it's a latter version?

Yeah, that's the Nagravision that the article mentions at the end.

There were programs that could use a TV capture card and decode it in real time on a 486DX2. They worked pretty well (I felt ok using it because we already had Canal+ but it was on the living room TV and my computer was on the opposite side of the house.)