Time’s in flux, changing every second. Your cozy little world can be rewritten like that. Nothing is safe. Remember that. Nothing.
Big Finish ♥ New Who
Tom MacRae’s Series 2 Pete’s World two-parter “Rise of the Cybermen”/”The Age of Steel” was inspired by Marc Platt’s Fifth Doctor audio Spare Parts, about the origins of the Cybermen on their home planet of Mondas (he’s even thanked in the credits). Russell T Davies has described Spare Parts as “some of the finest drama ever written for any genre, in any medium, anywhere.”
Big Finish ♥ New Who
The Ninth Doctor episode “Dalek” was adapted by Rob Shearman from his Sixth Doctor audio Jubilee. Despite some basic similarities, though, the stories are very different (Jubilee, for example, manages to be both funnier and much, much darker).
The Whoniverse brand Jubilee Pizza (best known as the preferred pizza of Torchwood Three) was originally created as a nod to Shearman’s audio.