My GT50 purchased in Aug. has extreme dithering that I can see very easily from 10' away, I have seen it on Blue-Ray and on HD cablebox. . I have read that dithering is normal to see from up close but I can plainly see it from a distance. I have played it on custom with C-net settings and on THK and still see the problem. I would appreciate some help by the knowledgeable people on this forum.