INTRODUCTION
This is a list of home video releases of Doctor Who serials. By the show's fiftieth anniversary year in 2013, every complete serial of the classic series existing at the time had been released on DVD or Blu-ray. By 2015, every surviving episode of the classic series had been released in one form or another
DVD
Most Doctor Who DVDs have been released first in the United Kingdom with Region 1, and released later in Australia and New Zealand (Region 4) and in North America (Region 1). Aside from differences in the external packaging, special features and commentaries are mostly identical in all version .The Region 1 release of The Five Doctors contains a commentary track featuring Peter Davison and Terrance Dicks not available on the earlier Region 2 release. All Region 1 releases prior to September 2005 also included a "Who's Who" feature that identified key cast members and gave brief biographies and filmographies. The Region 1 releases of Robots of Death, The Ark in Space, The Talons of Weng-Chiang, and Pyramids of Mars also include a featurette with the syndicated Time-Life introductions and closings narrated by Howard da Silva
Schedule
Prior to autumn 2006, the standard Region 2 release pattern was one release approximately every two months, for six releases a year. Starting in 2004, one of those releases (eventually standardised as the January one) would consist of a box set. Beginning in late 2006, four new release slots were added to account for a new category of "standard" edition releases—comparably budget-priced DVDs that would contain fewer extras than the "special edition" DVDs that make up the rest of the line. Likewise, the definition of "special editions" was expanded to include sets of two or more related serials. This rate increase brings the typical R2 schedule up to ten releases (of one or more serials apiece): one a month, excepting February and December.
Features
With few exceptions (noted below), each of the 'classic series' stories have been carefully restored by the Doctor Who Restoration Team from the best available materials, and are presented as originally broadcast—in episodic format, where applicable. Other features present on every (or nearly every) DVD include cast and crew commentary, subtitles, production notes, and a photo gallery.
"Special edition" releases (which make up the bulk of the line; see above) also typically include one or more documentaries relating to the serial in question, any relevant archive material, and—where applicable—the occasional highlight such as a Dolby 5.1 mix or enhanced movie edit. The precise features vary, depending on the available resources and the nature of the story
.
Most, but not all, Doctor Who mini-episodes, prequels and webcasts are bundled as part of the DVD and Blu-ray releasesFor example, five prelude videos were released online as part of series 6, and these are extras on the series 6 box set. Some Doctor Who webcasts were released on their own special DVDs