Great show (as always) but I do have a peeve. I think it was Rebecca who berated the pope for being "infallible" but changing the position of another Pope.
Papal Infallibility (like the suppossed idolotry of saints) is often criticized but very rarely understood. In short the Pope is NOT infallible at all times. Instead he is only infallible (supposedly) when speaking on certain matters (faith and morals) in a certain way (called "ex cathedra").
Basically the Pope, to be infalliable, must be speaking in his official role as teacher of the flock in an effort to bind them together and even then only in cases were the matter pertains to faith or morals (and usually only in cases pertaining to teachings from apostlic times).
As usual Wikipedia has a decent write-up:http://en.wikipedia.org/wiki/Papal_infallibility
This "power" is relatively recent (it was created in the 1870's) and very rarely utilized. In fact many Pope's argue against it as it effectively limits their power (in that they cannot overturn any ex cathedra declaration).
In fact the whole thing is rather fuzzy. The vatican does not maintain a "master list" of ex cathedra statements - and many of the few that do exist are often challeged.
So for all these reasons it's incredibly unlikely that any statements or teachings concerning evolution would ever be issued ex cathedra.
Frankly if I were a pope and could ask God for a Super-Power and this is what he gave me I'd be heartily pissed.
In the interest of full disclosure I was raised Catholic until I was 11 but never had any real faith. I've been an outspoken atheist for the past 20 years.
Still - if your going to criticize religion at least get it right. ;^)