Doctor: Planet gone, all rocks and dust, but the human race lives on, spread out across the stars. As soon as the Earth burns up, oh, they get all nostalgic, big revival movement. They find this place, same size as the Earth, same air, same orbit, lovely. The call goes out, the humans move in.

Rose Tyler: What's the city called?

Doctor: New New York.

Rose Tyler: Oh, come on.

Doctor: It is! The City of New New York. Strictly speaking, it's the 15th New York since the original, so that makes it New New New New New New New New New New New New New New York. What?

Rose Tyler: You're so different.

Doctor: New new Doctor.