i agree with you; this episode was awesome! as soon as i heard that donna would be the companion this season, i started really looking forward to it. as i already said on branwyn's journal (but you may not have read) i'm so, so very glad to finally have a doctor/companion relationship the way it is supposed to be. just mates. and the doctor being back to the way he should be. yay! :)

on the roof, before they make their daring almost escape, donna mentions how she's been keeping track of all sorts of crazy conspiracy stuff, including the claim that "all the bees are disappearing". WTF??

this is a real thing! it's been happening all over the world, and scientists aren't sure why. http://en.wikipedia.org/wiki/Colony_Collapse_Disorder