Which of the famous televised pro's LOSE online?

[Yuv]

I honestly doubt any of the best nlh players in the world (i.e., best online nlh players) can beat the mixed game rotation or even a simple horse rotation.

Eventually, they probably could. But put together some of the aspects of live play (it might be overrated, but there is some merit to "tellboxing" claims) and the fact that most online players are inexperienced in stud variations. I doubt there are many, if any, online players (excluding Antonius) who can just jump into the big game and dominate.