Invasion of The Dinosaurs - VHS and DVD Release

VHS and DVD Release

This was the final complete story to be released by BBC Worldwide on VHS, in 2003.

The story was released on DVD in the UK on 9 January 2012 alongside the 1975 Tom Baker story The Android Invasion, together forming the U.N.I.T Files box set. The DVD features a restored black-and-white version of Episode 1 as the default and also a 'best-endeavours' attempt at colour recovery of this episode as a branched-extra feature.

In contrast to other wiped colour episodes from the Pertwee era where the missing colour information had been inadvertently recorded on the surviving black and white film copies as a sequence of visual artefacts/dots or chroma dots, in the case of Episode 1 of this story this information was found to be incomplete, and only the red and green colour signal information was recoverable, requiring the missing blue signal information to be obtained via other means.

The new colour version of Episode 1 featured on the DVD thus employs approximated blue colour information, and although the outcome is not up to normal DVD quality, it gives an impression of what the episode would have looked like when originally broadcast.