Board Thread:Tales from the Tardis/@comment-188432-20130325173913/@comment-78.8.132.97-20130504013915

If directly asked, the producers of the K-9 TV show wouldn't be able to state that their show is a Doctor Who spin-off because BBC's lawyers would be after them. They are not calling it a spin-off purely for licensing reasons, not narrative ones. If the author owns the Bernice Summerfield character and not BBC then her series is also not a Doctor Who spin-off, and Big Finish would give you the same answer as regarding Vienna if asked. Same with Iris Wildthyme.