In hindsight, best first episode of any Doctor. First time I watched I felt like Clara, missing my raggedy man, so I didn't really like this episode. Then I fell in love with the 12th Doctor, so on a rewatch this is great, the meta narrative and underlying symbolism of what change means in this show is just amazing. How it confronts the viewer with this new and grumpy Doctor. It takes balls to do this for a first episode, I love it when risks are taken, and even more when they pay off like this.