Rose: And what about you? What are you going to do next?
Doctor: Well… back to the TARDIS. Same old life.
Rose: On your own?
| 2.00 - The Christmas InvasionRose: What are you going to do?
Doctor: I’ve got the TARDIS. Same old life. Last of the Time Lords.
Rose: On your own?
| 2.13 - Doomsday