I actually thought "DM does GB" was going to be a reference to Glenn Beck, given Dwight's initial conspiracy theories about how academia and the media conspire to whitewash history.  But that kind of petered out.

Rick = Prof. X ; Shane = Magneto

Quick note:  Killam did do the Brad Pitt impression in something else, as Weekend Update's weatherman  http://www.hulu.com/watch/2…  It had its moments, especially the "bleeeeh"s, but it wasn't that spot-on live.  Maybe because it was a first run?

I read a link to an old article somewhere here, and in it, Louis C.K. was talking about the "Season 2 finale" which ended up being "Duckling."  So I'm curious as to why its status changed.

This episode was amazing, especially the B&W silent scene over the credits.  But the final scene of the episode is what really sold me, as it was extremely layered.

This show is like the final season of 'Lost'
I'm starting to compile a litany of things that haven't been answered, and I can't tell if they're all purposefully unanswered or plain bad storytelling.