Interesting bit of camera work right at the start... showing how a line on the wall, when looked at from a very close angle, is actually the face of someone who just got clobbered...
"Same time you left, same place ... ish."
"The readings are very 'ish'-y."
... Is this "Honey, I Shrunk the TARDIS"?
"Can't you let me enjoy not knowing something?"
"That looks so adorable. Are you in there?"
"Please don't do that. It's just wrong." ... She really should have just said "Thank you, Thing." Assuming they even have repeats of The Addams Family over in Britain in the first place, though...
"A pudding brain. Worse still, a fluorescent pudding brain."
"It's bigger on the inside." "You know, I don't think that statement's ever been truer."
"Congratulations. Lying is a vital survival skill."
"Are we really hiding from killer graffiti? That's insane." "I agree. I have to find a better name for them."
"We're not going to call it a de-flattener!"
"You know, you move the TARDIS? Like the Addams Family?" ... Yes, they must have.
That whole scene with the deadman switch and the headband...
The TARDIS in siege mode looks like suspiciously like one of those mystery cubes from a couple of years ago ... I wonder if it can be programmed to play the Chicken Dance.
"The man that stops the monsters!"
"You are not welcome here. This. Plane. Is. Protected!"
"You were an exceptional Doctor, Clara. Goodness has nothing to do with it."
This was fairly well done overall, putting a rather Doctor Who spin on the SF concept of two-dimensional life. I wonder how much they spent on CGI which ended up looking rather like 1980s-style rotoscoping...