Zouresh, I beg to differ. The quantum dot tech make the Sony 9 series more vibrant. Though I have demoed only with the demo material of Sony, still you can feel the special colour production of the set with respect to Sony 8 series itself. Anyway, may be with 4k technology it will be more pronounced and useful, but even with full HD material it should still give a WOW factor to the display. I simply loved it, but alas, it's not for poor people like us
I agree with you manzb and I say this from my own experience. I have had the hx850 before for a while and now I have the W900A at home. The W900A is better at reproducing colors as compared to the HX850 for any source material (HD Movies, Blu-Rays, Normal Cable TV, etc).