Doctor Who Video Explorer

The Doctor Who Video Explorer was an umbrella title used by the Doctor Who official website to offer webcast documentaries related to series 5. It debuted in the last week of March 2010. It had a similar structure to the Doctor Who Advent Calendar feature, in that content was progressively unlocked as the debut of an episode on BBC One approached. Unlike the Advent Calendar, however, its content was exclusively devoted to explaining how various personnel impacted the production of a particular episode.

Content
The first series of this title contained a series of short documentaries, no longer than about 2 minutes each, which were made available for the week leading up to a new episode of the series.

Link

 * The Doctor Who Video Explorer