Just watched this one last week. After reaqding the posts on this thread I don't really understand many of the complaints many seem o have. Many of the questions was answered in the story. I think some set out to dislike it from the start. It was after all a Christmas special so it was not meant to be like the rest of Doctor Who. I really liked the story and my kids liked it too. It was one of the more feel good, sensitivestory. Yes, I may be getting old but I choked up at the end. For a Christmas show it wasexcellent for a Doctor Who story it was verygood.