Well, I picked up the set...
Ya know I don't understand the complaints about the transfer for Star Trek IV looking a little soft and a little too dark. Donald Peterman was the DP on IV and a lot of his films from the 80s (Cocoon, Splash, Flashdance, Gung Ho, and Planes, Train & Automobiles to name a few) have the same look... soft lighting, very dark blacks. Overall a very good representation of the film.
I have a bigger problem with this set... I don't think this set has been DNR'd to death, but there is definitely A LOT of compression artifacting or some noise going on. As an example look at Star Trek III during the "Enterprise Escape from Spacedock" scene, especially the bridge scenes... You will see what looks to be a lot of grain in the film... okay, no problem.
Upon closer inspection you'll notice the grain is stagnant and doesn't move at all... Then suddenly a character will get up or turn his head and suddenly the grain moves with the person's movement on screen... almost like the characters are performing in a vat of some gelatinous liquid.
Film grain doesn't do that, it's part of the film structure. This is obviously some video noise added by something that has been done to the film... maybe it's an after effect of DNR, but I've never seen a heavily DNR'd film (like Patton or The Longest Day) react like this. Also III & IV look very sharp, so I don't think DNR is the culprit.
I've got one red lens and one blue lens! DUDE IT'S 3D!!!!!