You appear to be an expert. Does the colorization increase or decrease the picture resolution?
I see this was directed by Waris Hussein, an under appreciated UK director, I'm an admirer of his later movies!
I expected more replies to this thread, it must be a Superbowl effect.
Season 1 (1962/63), all seven episodes condensed into a 75 minute feature with colorization & special effects (visual & audio) arriving on a BBC Blu-ray on 02/13/24. I thought the editing etc was well done, Dr Who fanatics may think different.
Pretty nostalgic for me as it's the first time...