Board Thread:The Reference Desk/@comment-4139960-20130611213836

As the page on sonic screwdriver currently stands, it seems to imply that no Doctor Who media at all post-Survival introduced the sonic until the very end of the Seventh Doctor's life in TV: Doctor Who.

However, in at least the audio version of Love and War, (Part One, Track 8, 2:15) the Seventh Doctor opens a door to a Heavenite observatory buried underground with one. Is this a massive factual error and omission made by editors unfamiliar with the NAs, or did Jacqueline Rayner change how the scene played out in the adaptation for Big Finish? 