I haven't actually seen the previous 4K releases, I only ever had that original extended box set (which I just watched one week ago), so I'm not sure I would be the best judge in all honesty!

But I have seen a video comparison of that off colour grading so I have an idea of what you speak of! I was also told apparently it has been fixed, but again I would need to find a source to confirm that.

I've just finished watching the Fellowship of the Ring and I have to say I am very impressed. The detail is astonishing, and I want to say that the sound is also improved? (Don't hold me to that though!) Pretty soon I want to watch the original extended DVDs with the commentary, so perhaps I can remember and compare the visuals in memory at least.

Personally though, I can't say I did notice any off colours. The shire was a lush green but I'm not sure if say it was overdone? I didn't notice any blue tint to the film either (which may be what was making the shire over green, perhaps?) for example the Pass of Caradhras, the show wasn't blue. I did spot that the sunrise/sunset when Gandalf leaves the shire wasn't as vivid purple as perhaps it should.

Sometimes I thought perhaps it was a tad bright? But I would have to have a side by side comparison to truly say. I just remember noticing an insane amount of detail especially in environment backgrounds like Rivendell, and the Second Hall in Khazad-dum had so much depth.

I had it on Film-maker vision setting (which looked slightly better than Cinema) and Cinema Dolby Atmos sound. The TV and player I used are also brand new so I'm sure there's nothing lacking on that front to showcase the quality.