International hero NickFromFulham and his alternate channels has been my only source for this show for years now (seen every episode and he's the first to "syndicate" a lot of the British comedy to foreigners on youtube). I have looked for it streaming. You may likely find it on tvlinks but I stick with old reliable Nick.
I've tried thinking of what american personalities would appear on an American version of this show. Damned if I can think of a single one (aside from the comic relief, but even then...)
There was an American version of QI in development to be hosted by John Hodgman a few years back that actually had the blessing of Stephen Fry and John Lloyd but it never went anywhere.