Doctor Who – Lost in Time is a BBC three-disc boxset DVD released in 2004. It is a collection of restored Doctor Who episodes and clips from stories that are incomplete or missing from the Corporation's archives. There were, at the time of release, 108 missing episodes, all from the black-and-white 1960s era. Although the search goes on (and eleven complete episodes, plus some clips, have been recovered since the release) many or all of these episodes may be lost forever—hence this collection's title.
The Region 2[1] and Region 4[2] releases are a single three-disc set. In Region 1, it is available as two separate releases (a single-disc William Hartnell DVD[3] and a two-disc Patrick Troughton set[4]) or as a single three-disc set.[5]