In  a  new  interview  with  BBC  Newsbeat David Tennant talks about the final specials this year that see his exit, and about Matt Smith taking over the role as the Doctor next year. “Because you can only tell the story of a character dying once it allows you to go to places you haven't quite been before. It allows you to tell types of stories that you can't do when it's an ongoing series. It allows it to be bigger and more epic, and sadder and wilder, and the stakes are just that bit higher. I'm really excited for Matt Smith but I remember how exciting it was starting out on this kind of a journey - and nerve-wracking and a bit overwhelming but just such a kick. So I'm jealous he's going through that now, but it's brilliant and it couldn't happen to a nicer chap. I'm sure it'll be a bit odd at first to watch somebody else playing the part but I'm really looking forward to not knowing what happens next as well. I'm looking forward to being a viewer again because I've always loved Doctor Who so I can't wait to sit down and watch a new one. I do think it's a bit like being President of the United States, I think you always get to be called the Doctor. I will always expect, when I see you in the future, to refer to me as the Doctor, clearly." The final two specials will air on Christmas Day and New Years Day, with the next special on November 15th.