Japanese and Portuguese. An unabridged reading of the novelisation by actress Caroline John was released on CD in September 2007 by BBC Audiobooks. Home media The original 625-line PAL videotapes of the serial were wiped by the BBC for reuse, although they retained 16 mm b/w film recordings. In 1993, the colour signal from a 525-line NTSC version of all seven episodes (except for part of the beginning of episode 4) was used, along with colourisation techniques, to colourise the film prints for the VHS release, which was in July that year. In October 2006, the story's original soundtrack was released on CD as part of the 'Monsters on Earth' tin set, again alongside The Sea Devils and Warriors of the Deep, with linking narration from Caroline John. The CD was then individually re-issued in January 2008. On 14 January 2008, a fresh restoration of the story was released on DVD as part of the boxed set called "Beneath the Surface", also including The Sea Devils and Warriors of the Deep (the black-and-white prints and off-air colour recordings were combined, with the colour prints distorted to reduce fringing and both prints processed with VidFIRE to restore video sections to 50 unique fields per second, rather than 25 frames per second, with no motion information between the two fields corresponding to each frame). The story was then released on DVD again in 2013, included in a set paired with The Hungry Earth and Cold Blood (a two-part Eleventh Doctor story from 2010), in 'The Monster Collection' series, specifically The Silurians entry. References External links Doctor Who Locations – The Silurians Reviews Doctor Who and the Silurians reviews at Outpost Gallifrey Target novelisation On Target — Doctor Who and the Cave-Monsters Third Doctor serials 1970 British television episodes Doctor Who serials novelised by Malcolm Hulke Television episodes about dinosaurs