missing sequences. The serial was released on VHS by BBC Video in January 2002; it was the first commercially released story to receive the VidFIRE process. 2 Entertain released the serial on DVD in August 2012; the release featured several special features, including audio commentaries, documentaries, and a recreation of the original third and fourth episodes using newly recorded dialogue and animation based on the original scripts. The serial was released on Blu-ray on 5 December 2022, alongside the rest of the show's second season as part of The Collection. References Bibliography External links 1964 British television episodes Doctor Who serials novelised by Terrance Dicks Doctor Who stories set on Earth Fiction about size change First Doctor serials