1. The episode's opening words? "New York - the city of a million stories…"
2. The New York location filming has paid off - expect impressive visuals aplenty.
3. "That's an awful lot of locks for one door."
4. The Doctor's new-found anonymity has had a few surprising side effects.
5. "You embarrass me!"
6. River's back and her marriage to the Doctor is a little rocky this week...
7. "Just a moment - final checks!"
8. The Doctor reveals a previously undisclosed passion.
9. "Who else could do that?"
10. You'll probably cry. At least twice.
Thanks to Digital Spy.