Fantastic episode tonight. Just absolutely fantastic. A back-to-basics episode, and far more restrained and disciplined than anything we've gotten from Moffat since he took over as showrunner. The loss of Amy and Rory and the indeterminate (but lengthy) period of self-imposed exile from the world has made the Eleventh Doctor darker and more brooding, more Ninth Doctor and less manically, mile-a-minute zany. And since they're not introducing a new Doctor and a new companion at the same time, it created the opportunity for the companion herself to be the mystery. I loved Jenna-Louise Coleman, somehow the same character as from "Asylum of the Daleks" but stripped down to her core as an ambitious Cockney barmaid with a chip on her shoulder and more brains than smarts, if you take my meaning. It also drove home how much I've missed seeing the Doctor from an outsider's eyes; this episode was wonderful at making the Doctor seem magical again. Not only was Clara spying on the Doctor as he snuck into his secret TARDIS a nice throwback to how we were first introduced to the premise in "An Unearthly Child", it made the reveal new and special again. Last year's Christmas special felt phoned in. This one had the evident care and work put into it of a television pilot, which is exactly right since in a away that's exactly what it is. And I love,. love, love the new title sequence and orchestration. The theme feels alien again, and the credit sequence blazes a new trail while paying homage to a lot of the old versions of the theme sequence. The only downside to introducing the new framework for the show with the Christmas special: if this was like the pilot, now we have to wait the better part of four months for episode two.