That is so perfect, the look on his face, his whole body language, the shorter, younger hair. I can just see a young 4th Doctor strutting around like that. It's brilliant. I have the hugest smile on my face!
Nine, Ten, Eleven (Almost done, seven episodes left) and The Day of Doctor. I saw an old man at final sceen and don't know who he is for i never see him in any episode (from nine to eleven) so i do a little research. Turn out he is The Fourth Doctor (160 episodes, holly....). Watch few episode of Tom and must say, Four and Eleven is just crazy.