Doctor Who: Children in Need Special (2005 TV Short)
The Doctor: [the Doctor is feeling his body just after regenerating] ... Hair! I'm not bald! Ooh... big hair. Sideburns - I've got sideburns! Ooh, really bad skin. Little bit thinner; that's weird. Give me time, I'll get used to it. I... have got a mole. I can feel it. Between my shoulder blades, there's a mole. And it's all right! Love the mole. Go on, then. Tell me... What d'you think?
Rose Tyler: [after the Doctor convinces her he's the same Doctor] Can you change back?
The Doctor: D'you want me to?
Rose Tyler: Yeah.
The Doctor: Oh.
Rose Tyler: Can you?
The Doctor: No.