One of the episodes from season 2 or 3 is missing footage is it still missing on the blu ray? In other words are these the syndicated cuts?
Are you able to be a bit more precise? The opening feature length episode of season 3 (Knight of the Drones) is presented in 2 parts on the US Blu-ray set, and is therefore missing some scenes. Is that what you are referring to? The UK set had all the feature length episodes presented in 2 parts, but the distributor exchanged the discs for anyone who sent them off for replacement.
Therefore the UK version is complete, apart from the opening credits used, which I have reconstructed and shared on a well known organ site 😃