I think it was PS3 that shipped with “Other OS” functionality, and were sold a little cheaper than production costs would indicate, to make it up on games.
Only thing is, a bunch of institutions discovered you could order a pallet of PS3’s, set up Linux, and have a pretty skookum cluster for cheap.
I’m pretty sure Sony dropped “Other OS” not because of vague concerns of piracy, but because they were effectively subsidizing supercomputers.
Don’t know if any of those PS3 clusters made it onto Top500.
Didn’t think Knoppix was obscure, but that was my gateway to Linux first on all my personal PCs.
I guess the years have passed it by.