It certainly began creeping in with seasons 15 and 25 but wasn’t too egregious for the most part, likewise with season 7 for which the PQ will always be hit and miss due to the missing negatives etc. - Season 13 is where it really went wrong and 21 could end up with similar issues unless they take the backlash to heart.
Season 13 is what got me to start really looking at this. I don't have it as I buy the standard editions so lag about two years behind which means so far I've avoided all these sets with the obvious AI. But I've been going back and comparing the earlier blu-rays to the DVDs...well, via youtube so not the most perfect comparison...and I'm starting to feel the DVDs look better even for the earlier sets. I'm not sure if it's some kind of sharpening/edge enhancement, or if just the resolution and better compression of blu-ray further exposes issues with the original SD video, but there's this sort of...outline, for lack of a better word, on one side of objects that I find distracting, and it seems like there's some overuse of DNR as well, though perhaps that's just youtube compression.
As I've got the blu-ray sets up to that point, I really don't want to have to go back and buy all of it on DVD again, but am feeling like that's maybe what I should do. If I do that, I could just pick and choose the stories I like, but the problem with that is it has been so long since I've seen most of it I don't really know which is which. Of course I can watch the blu-rays first but just finding the time is difficult for now. My fear is that the DVDs will go out of print or maybe they already are; I don't know.
Nice pickups! Greatest show is one of my favourites from the era.
Mine too, but I have the impression it isn't well liked in general. I'm pretty sure I've seen it on a "worst serials" list before.
I first saw Sylvester McCoy as his seasons originally aired, and at that time I didn't like him, having seen Tom Baker, Peter Davison, and Colin Baker not that long before, as I saw those in reruns. But seeing him again some years later I like him a lot. I never saw Jon Pertwee until somewhat later and still haven't seen a lot of his. I also haven't seen much of Patrick Troughton. I think I've only seen the very first episode of William Hartnell, and disliked it so much have never had any desire to see any more.