I'm not too sure it was just added green. There are several scenes that are notably greener, most noticeably when Strider leads the hobbits after Bree through the wilderness, and to lesser extents here and there. Moria is definitely greener, though still not green (remember, there was a lot of blue, which is now toned back to more of a blue-green-gray). I think it kind of feels much "tighter" color-wise, and frankly a lot of scenes were just gorgeous. I wasn't too impressed early on during the prologue, as there isn't a whole lot of color there in the first place. But it still seemed different (could be slight TV/setting differences). The reason I say it's not just green is because there are much more vibrant golds and yellows too. In fact, some scenes also had quite a bit of blue that didn't before. I can understand added yellow would result in more green, more prominent gold, and so on, but like I said, it wasn't a blanket change, as the blues seem increased too (which wouldn't happen with a yellow or green filter/adjustment). So I hope to see a screenshot comparison scene-by-scene in the future out there.
If I could compare it to any other blu-ray in the past, I'd say it felt a lot like watching the BD of Last of the Mohicans, where there was both added contrast and altered colors (more warm tones in the case of Mohicans that were not there before). Lots more contrast, it feels. Sometimes I felt like this was obtrusive, however, when LOTR is very rich in value and filming techniques (soft focuses, glowing elven wardrobes, and dated greenscreen can all get a bit muddy with the added contrast). Maybe it was just the TV or setting, however. I usually have it on standard but I remember watching the DVDs recently, there was a huge difference rotating among the three formats.
And anyway, added green is a plus for me. I love green! And it fits with FOTR's consistent green theme packaging. My initial fears were scenes like Amon Hen where there are prevalent gold tones and autumn scenery, but if anything it looked very rich. Some shots felt a lot colder than before though, but overall I'm still kinda processing a lot of it. A comparison would help a ton, that's for sure.
As for the picture quality, it was as great as it could possibly get on my TV at the distance I watch. As with the color, there are some scenes with soft focus and other issues that won't really benefit, but the wide landscapes and focused details are stunning. I can't imagine how TTT and ROTK are going to look. I think I'm going to have a better e xp erience with those just knowing the color wasn't altered, however. It's always bittersweet when one of your favorite films gets altered. Mixed feelings abound. But all I can say is see for yourselves and I'd love to get second opinions on this, as I'm still at a stalemate with much of my impression.
EDIT: Wow...
http://screenshotcomparison.com/comparison/58228
http://screenshotcomparison.com/comparison/58229
http://screenshotcomparison.com/comparison/58250
http://screenshotcomparison.com/comparison/58147
http://img810.imageshack.us/img810/5648 ... hering.jpg vs
http://img833.imageshack.us/img833/5648 ... hering.jpg
As I suspected while watching, I read that it's a cyan tint (which would increase both blue and green, obviously). But I'm still not convinced, as some scenes still felt warmer.