Glad someone else mentioned it as I was sure I must have missed something at the start of the episode.
Re: the pixilation in the previous episode, I think they filmed it intending to bleep out the swear worRAB and pixilate some of the dead bodies to give it a more 'realistic' tv feel, they took out the bleeping when they changed networks but I wouldn't be surprised if that pixilated girl was either a dummy or was obviously awake/alive and they made no attempt to hide it as they assumed it would be pixilated. That's my theory anyway, lets see if they do it again!