OK. So. Asylum of the Daleks. Jenna Louise-Coleman was in it. Yep, the new companion debuted tonight, instead of Christmas when we were all expecting her.
Her character, Oswin Oswald, was a major driving factor in the episode's plot and had a good repartee with the Doctor and Rory.
On the subject of tonight's episode Jenna said "“Boo! Hello! Hope we gave you a good surprise! Thanks to all the fans who kept it quiet! More to come...watch this space!”
Steven Moffat, the writer of tonight's episode, gave thanks to the journalists, bloggers and fans who had attended the premières for not giving the game away. Specifically, he said:
“I hope you all got a nice surprise when Jenna popped up in Doctor Who several months early. If so, that surprise came to you courtesy of the frankly magnificent ladies and gentlemen of the press, and of the many Doctor Who forums and blogs too. This show has been seen at four separate screenings, across four different countries and yet not one person gave one spoiler. From all of us on Doctor Who, a heartfelt thank you for helping us tell our story.”[Source]