I agree with the above comments. Colourised versions are curiosities. What I really want from Network on blu ray are high quality versions of the Anderson programmes as they were made. But Network insist on “improving” Anderson’s work. For example, the colour changes on Captain Blue’s vehicle and the martian landscape in the Captain Scarlet releases, and the new title sequence for New Captain Scarlet.
I would buy colourised versions as a curiosity but not at the price that Network are currently charging. Perhaps the disk will turn up in one of their sales in a few years time.