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'Doctor Who' spin-offs ranked: From K-9 and Daleks! to 'Class', 'The Sarah Jane Adventures' and 'Torchwood'
As 'The War Between the Land and the Sea' rages on, we look back at the previous TV shows to explode out of the Whoniverse.
Over Doctor Who's entire history, 14 total episodes have included "... of the Daleks" in their titles, following the Doctor's greatest enemy.
Season 21, featuring Peter Davison's Fifth Doctor, is now available as part of the Doctor Who: The Collection Blu-ray range.
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