Y'know, I expected a bit more Hitler.
"Spoilers? What's spoilers?"
Trans-time police a cross between Strontium Dog and The Numbskulls.
An abruptly retconned in best friend. Who is abruptly retconned in.
How controllable is her regeneration? Obviously more than the Doctor's (but then everybody's regeneration is more controllable than the Doctor's) so did she change her appearance on purpose? River looks more like a theoretical relative of Amy and Rory than Mels does.
Rory punching Hitler and another Nazi into the bargain.
Hmm. Gallifreyan looks rather like crop circles. Not that particular crop circle, but in general.
Well, 'splains a lot. And next time a nice straightforward story about childhood fears and giant creepy porcelain dolls. Or something.
Still, I'd have liked one more gag at Hitler's expense at the end - maybe see them going back for the TARDIS and he's still in the cupboard going "can I come out now?"