Good posts from all. Also, it looks like tonight's episode briefly went up on HBO Go before getting yanked, and I was warned by a friend that it contains a terrible, terrible scene that ruins established characters, spits in the face of the books, and confirms that D&D are retarded. I wanted to avoid spoiling it for myself, but I couldn't resist guessing at what it was, and I got it right. Do you want to know what it is? You'll hate it, I promise.
Stannis actually sacrifices Shireen.
Also, this isn't a spoiler or anything, just speculation, but it's totally going to be Olly who stabs Jon. I hope it isn't true, but they're foreshadowing it pretty hard.