A typically frantic opening salvo from the pen of Steven Moffat. I wasn't entirely satisfied with the mostly stand-alone nature of the first half of this season, so I was chuffed to see some continuity tonight. Christmas episodes generally stand on their own—but not this year. I think I even cheered when the enemy was revealed. (Albeit discreetly and it sounding like a burp.) Doctor Who's at its best when there's a mystery to be solved, and I'm already loving the detail Moffat's slipping in. The question is: how much of it is relevant?
