In pictures: How Doctor Who logo has regenerated down the years

The first Doctor Who logo - used from 1963 to 1966 ... Photograph: Public Domain

... when the first Doctor, William Hartnell, was in the Tardis Photograph: Allstar

In 1966 a serif font was used - although the logo was still pretty basic Photograph: Public Domain

Patrick Troughton - the second Doctor, who regenerated in 1969 ... Photograph: Allstar

... as did the logo, into this surprisingly modern-looking number. Not sure about the turquoise, though Photograph: Public Domain

Third Doctor Jon Pertwee was the incumbent until 1974 Photograph: Allstar

Pertwee was followed by Tom Baker, who was accompanied by this logo, which seems about to leap out of the screen Photograph: Public Domain

Tom Baker as the Doctor. Don't worry, he'll make sure the Daleks don't jump out of this screen Photograph: Ronald Grant Archive

A more minimalist logo used from 1980-1984, roughly coinciding with Peter Davison's time in the Tardis Photograph: Public Domain

Peter Davison, Doctor from 1982-1984, had the air of a man kicked out of the member's area at Lord's for not wearing a tie Photograph: Eugene Adebari/Rex Features

A minor tweak for the next logo, used from 1984-1986 Photograph: Public Domain

Colin Baker, Doctor between 1984 and 1986, and Nicola Bryant as his assistant Peri Photograph: Rex Features

Crikey, not too sure about this one. Does the Sylvester McCoy-era logo strive a little too hard to be futuristic? Photograph: Public Domain

McCoy played the part from 1987-1989 - and here he is with Bonnie Langford. No one could accuse McCoy's get-up of being too futuristic etc etc ... Photograph: Rex Features

Ahh - a return to the winning formula for the logo used in the 1996 one-off with Paul McGann as the Doctor Photograph: Public Domain

McGann outside the Tardis during his sole appearance 1996 Photograph: Ronald Grant Archive

The logo used from 2005-2006 with Christopher Eccleston and David Tennant. For the first time the two words of the title are presented horizontally rather than vertically Photograph: BBC

Eccleston and Billie Piper, who helped to revive the series under showrunner Russell T Davies Photograph: Colin Bell/AP

Spot the difference: the logo used between 2007 and 2009 and in specials. This was a 'cleaner' version of the previous logo, apparently Photograph: Public Domain

The 10th Doctor, David Tennant, with Catherine Tate Photograph: Allstar

And Matt Smith - who will make his first on-screen appearance in the Tardis in 2010. Ready for the new logo? Drum roll ... Photograph: BBC/PA

Here it is! And yep, the bit on the right looks a bit like a Tardis. But it's actually the letters DW. Which stand for Doctor Who, you see. Hmm Photograph: BBC