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The "Classic Series" (1963-1989, plus the 1996 TV movie) was done in 25-minute long episodes where every story (except for " Mission to the Unknown" and " The Five Doctors") was a multi-episode serial typically these ranged from four to six episodes, but on rare occasions could go from as little as a single episode to as many as twelve (fourteen if you count Season 23, The Trial of a Time Lord, as one serial note to make a long story short, Season 23 was produced as four different but interlinked serials in an overarching story arc, but the whole season was billed as a single serial when it aired as a marketing tactic). Some of these episodes have been animated by dedicated restoration teams for official DVD releases funded by the BBC. All the missing episodes survive in audio form thanks to viewers at the time using tape recorders during the original broadcasts, and in addition to these soundtracks being released with narration from an original cast member to fill in the visual elements, there are also telesnap reconstructions, which marry the audio to off-screen photographs of the original broadcasts. And even that isn't enough to stop fans from thinking the 97th episode has a copy lurking somewhere. Many of the First and Second Doctors' episodes (97 to be precise) are no longer accounted for in video format- though only one, " The Daleks' Master Plan" part 7, "The Feast of Steven", was almost certainly exterminated beyond recovery as no copies were ever made of it, so a delicate flicker of hope remains for the other 96. Recaps for Doctor Who, spanning all TV series episodes from 1963 up until the present day.