Tennant: 'I'm jealous of Matt Smith'

David Tennant has admitted to feeling jealous about the upcoming experience of Matt Smith on Doctor Who.

Smith replaces Tennant as The Doctor in the next series of the show after three final specials before the end of the year.

Tennant told BBC Newsbeat: "I'm really excited for him but I remember how exciting it was starting out on this kind of a journey - and nervewracking 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."

He added: "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."

Tennant joked: "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."