Then, "The Girl in the Fireplace," by Stephen Moffat, the best episode this team has ever done.

Finally, the Doctor gets a romance... (So, he IS anatomically correct, after all. Good to know.) And with Madame Du Pompadour, no less.

The episode was funny, sad, fantastic -- everything Who does well.

The time travel element is especially well-handled here. The urgency from the Doctor's end is counterpointed with Pompadour's "slow road" -- She's in a different decade of her life each time our heroes encounter her.