Adventure Calendar

The  — originally launched under the name Advent Calendar in 2006, then modified to Adventure Calendars therefter — were a standard holiday feature of the official BBC Doctor Who website. Like an actual, the Adventure Calendars offered a new "treat" for fans every day from the first of December through to Christmas. They were used to ignite interest in the then-upcoming Christmas special. Among the treats offered were things like games, desktop wallpapers, trailers, music clips and videos, as well as exclusive short stories and novellas. Though most of the treats directly supported the Christmas special, sometimes they were reminders of the series that had been broadcast earlier in that year.

A notable exception to the scheduling was the 2009 installment, which continued past Christmas until 1 January 2010 in order to promote both chapters of TV: The End of Time.

The calendars persisted on the website long after their particular Christmas had passed. As of August 2013, most elements of the calendars were still viewable in the official site's archives.

Due to licensing, prior to 2010 most video-related items could not be accessed by non-UK visitors on the site. Since 2010, however, most video content has been available internationally.

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