I can now vote on the T4976 panel. I just got my T4554 replaced with it.
Inu_Yasha is correct in that this screen does sparkle.
However, it's very liveable and you have to "think" about it to notice it. Considering all the discussion on sparkle here, people may notice it. i would say it is about 25% the intensity of the W4554. My eyes do not go cross-eyed. The sparkle is not nearly intense enough to produce the "holographic effect" that the W4554 shows.
However, the colors and whites are lovely with 0 dead pixels and very very low light leakage.
I have 21 days and will report back if I change my mind, but, a big thumbs up for T4976.

