Editing Shada (Doctor Who) (section)

====Production====
Tom Baker was originally approached to reprise the role of the Doctor, but declined. The Eighth Doctor was then substituted and the story reworked accordingly.

Portions of the Big Finish version were reworked by [[Gary Russell]] to make the story fit into ''Doctor Who'' continuity. This included a new introduction, and a new explanation for the Fourth Doctor and Romana being "taken out of time" during the events of "The Five Doctors": the [[Eighth Doctor]] has come to collect Romana and K9 because he has begun to have a feeling that there was something they should have done at that time.{{citation needed|date=November 2012}}

When Skagra is investigating the Doctor, clips from three other Big Finish productions can be heard, exclusively on the CD version – ''[[The Fires of Vulcan]]'', ''[[The Marian Conspiracy]]'' and ''[[Phantasmagoria (audio drama)|Phantasmagoria]]''. The original serial was to have used clips from ''[[The Pirate Planet]]'' (1978), ''[[The Power of Kroll]]'' (1978–79), ''[[The Creature from the Pit]]'' (1979), ''[[The Androids of Tara]]'' (1978), ''[[Destiny of the Daleks]]'' (1979), and ''[[City of Death]]'' (1979).{{citation needed|date=November 2012}}