As an avid horror fan, I've seen pretty much all there is to see from the horror/thriller genre, I say that proudly, however I would be inclined to say that this is the best piece of horror/thriller cinema I've ever seen. Charlie Brooker absolutely killed this episode, if you pardon the pun, and single-handedly managed to create a better horror text than thousands of famous horror writers before him. Kudos to Brooker and the Director for this phenomenal masterpiece!