Series 2
special features include commentary by cast and crew on all episodes,
video diaries with Tennant, Doctor Who Confidential and Picture - in - picture commentary on The Girl in the Fireplace, The Age of Steel, The Impossible Planet, and Doomsday.
Series 5
special features include audio commentaries from cast / crew; newly filmed scenes written by Steven Moffat, called «Meanwhile in the Tardis»; Doctor Who Confidential; Monster Files; Outtakes;
video diaries and Teasers and trailers.