Lots of replies to this, and someone may have already made these points but:
Company X has a great idea: Let's widen the Gamut of our LCD/Plasma screens! Engineers come up with a solution. Great! Send it to marketing!
Consumer buys TV with the expectation that they are going to see MUCH more vibrant and Brilliant color. But wait, there's a problem here:
The video, be it from a Blu-Ray or what have you, is already encoded (mapped) into the HDTV color space. Think of the color space as a container for color,
once it has been put into the confines of the industry standard color space, it simply doesn't matter how large a color gamut your display can make. It _might_ make
a difference if your previous display could _not_ reproduce the entire predefined gamut of the HDTV space, there you might see some modest gains. Are most displays
"Yellow deficient?" well, some do a better job than others, to be sure, but this ramped up Yellow phosphor is overkill when compared to the actual color space that is encoded
into the video. Here's another way to look at it. Most LCD displays most closely conform to the sRGB color space, with proper calibration (and if hooked to a computer, profiled)
the video displayed will very closely match what the producer of the content intended, knowing that their content was going to be viewed on an average panel of average performance.
If display manufacturers are going to start a new wave of expanded gamut sets, then a new ICC HDTV color space will have to be agreed upon. Producers will then have an expanded
palette of color from which to work. A good example of where expanded color gamut is really useful is in Graphic Design/Photography. I'm viewing AVS on an Eizo color edge monitor that
has been calibrated with a Greytag-McBeth I1 pro Spectrophotomer to a white point of 6500k with a gamma of 2.2, an ICC profile generated and applied. Why? Because I do color critical work,
and I NEED to be able to see colors that exceed the sRGB range. The Eizo, not cheap! Is designed to reproduce the Adobe98 (A98) color space. If a color is outside the sRGB space I have the ability
to actually see the difference when it is brought into sRGB . But, I digress.... Sorry.
What would be really cool IMHO, would be the ability to actually PROFILE a large HT display, not just calibrate and adjust it's white point / grey balance. The only way that can be done, that i'm aware of, is to have an actual graphics card driving the display. Why wouldn't high end display makers give you the ability to generate a profile in addition to the usual white balance ect, controls? You can get pretty good results using a solution like CalMan and an instrument like the I1 pro, but it would be geek heaven to be able to actually make a real .icc profile for your display independent of having to drive it using a PC/MAC. You could then objectively compare the output of your display against ICC standard color spaces such as CIE(Lab), Rec.709 (HDTV),sRGB, A98 and so on.
I'm all for expanded Gamut! I think it could bring in a whole new dimension to the Home Theater. Directors/Producers would dance a merry little jig if they had new, bolder, colors that they could display and it would be a big win for the consumer, but until some standard is brought to bear in terms of color management, I think that any real push at the boundaries of Rec.709 is at best beta testing new panel technology on consumers (we all hate that, right?) and at worst a marketing ploy aimed at the understandably uninformed.