Well Vincent came today and Calibrated my 58DX902 for SDR Day, Night and HDR settings. He certainly knows everything about this Tv. He explained everything he was doing and why. I really can't believe the difference in the picture quality. I was very impressed what Vincent has done. He saved my old settings on custom on flicked between the Calibrated setting to show me the difference. The difference was massive, my old settings which was professional 1 had too much green. In the calibrated settings he managed to get all the colours equal so it looks so natural and vibrant while keep excellent black levels. I would differently recommend Vincent from HDTV test who Calibrated my TV.