12 August (production)


 * 1963 - Director Waris Hussein started the ball rolling with the BBC Radiophonic Workshop, explaining to Brian Hodgson the need to find a good effect for the sound of the dematerialisation of the TARDIS.
 * 1963 - Donald Wilson wrote to Sydney Newman to once again impress upon his boss the importance of moving Doctor Who from Lime Grove Studios to BBC Television Centre and/or Riverside Studios. Said Wilson:


 * "I feel most strongly that Dr. Who must from time to time explore the full range of technical resources, otherwise we shall lay ourselves open to criticism for lacking in imagination and boldness."
 * 2020 - Recording for Plight of the Pimpernel took place.
 * 2020 - Big Finish confirmed the releases of Plight of the Pimpernel and The Grey Man of the Mountain were to be released in December of that year.