Me too. I was reading an article about the Christmas special in a magazine the other day. There was a part which spoke about Peter Capaldi's long-running association and love the show. I knew that he had already featured in a previous episode featuring the 10th Doctor - "The Fires of Pompeii" - as well as appearing in the spin-off series Torchwood: Children of Earth but I didn't know that when he was a teenager he very nearly became chairman of the UK Doctor Who Fan Club! Clearly it is his destiny!