The BBC have the news that David Tennant will leave the role of the Doctor after completing the four specials due to air over the next year. Naturally there is no word yet on who will replace him. Let the rampant speculation begin!

Russell T Davies, the writer of most of the worst episodes of the Doctor Who revival, but the man credited with bringing it back, is to leave the series after the 2009 specials. Series five will be helmed by Steven Moffat, who wrote numerous standout episodes such as The Empty Child, The Girl In The Fireplace and the absolute highlight Blink.

The BBC have the full story, of course.