» “It is so humiliating when you do that.”
» “I hate endings.”
» “Beware the yowzah…”
» “That’s an awful lot of locks for one door.”
» “It would be impossible to land the TARDIS here.”
» “You bad boy, you could burn New York.”
» “Didn’t you used to be somebody?”
» “One does one’s best to hide the damage.”
» “He was so pleased to see you again.”
» “One psychopath per TARDIS.”
» They shouldn’t be in the same room at the same time, should they?
» A device used in A Town Called Mercy is used again, whilst it shares similarities with The God Complex and Bad Wolf.
» A Huey Lewis & the News song gets mentioned.
» Oh, that’s gonna Sting!
» A seemingly throwaway line in The Impossible Astronaut suddenly makes a lot of sense.
» Something heard in Asylum of the Daleks is heard again.
» Someone is texting a boy…
» Rory’s love of children is put to the test.
» Lightbulbs and Christmas, again!
» The Doctor shares a trait with Billy Crystal from When Harry Met Sally, except opposite.
» The events of The Curse of the Black Spot and The Beast Below get referenced.