The TARDIS materializes on a deserted street in the snow. This doesn't look like Naples, it looks like the one set they built, from a second ago. The Doctor and Rose are lying on the floor laughing, with green light and steam and smoke all over the place, I guess about how they didn't die. "Blimey!" says Rose, and the Doctor's like, "I know, right?" He checks the screens and confirms that they're in Naples, on December 24th, 1860. He giggles, and Rose smiles wonderingly: "That's so weird...it's Christmas!" The Doctor gestures toward the door -- "All yours!" Rose is still sequential-processing the fact that it's Christmas in 1860: "Happens once. Just once, and it's gone. It's finished. It'll never happen again. Except for you." Rose studies the Doctor intensely. I love how, in each episode, she realizes what's going on just a bit more. I'm betting that, by mid-season, she'll have caught on to the fact that the Doctor's a guy. She goes on: "You can go back and see days that are dead and gone, and a hundred thousand sunsets ago...no wonder you never stay still." He allows as how it's not a bad life, and Rose smiles for a second. "...Better with two." Aww, Companions! They grin conspiratorially for a bit, and then she smacks his bum and heads for the door full tilt. The Doctor stops her up short: "Oi, oi, oi! Where do you think you're going?!" She's like, "1860! Yeah!" And he tells her that if she leaves dressed like Rose Tyler, she'll start a riot. He then calls her "Barbarella," I guess just by comparison, and tells her to check out the Wardrobe Room: "First left, second right, third on the left, go straight ahead, under the stairs, past the bins, it's the fifth door on your left. Hurry up!" Rose runs off to get changed, all in a bustle, and the Doctor stares after, full of affection.