I was using different compney tv but its services was not best. It was in liquid panel aur its picture quality was not good. I visited in a Showroom. Finally I decided to purchase OLED 55 inch. And I used this tv is very very best OLED tv of the world its picture quality is very amazing. It using alfa 9 processor to clear picture quality. Its customers support is A1. And its sound quality very ultimate.Organic Light Emitting Diodes is very ultimate. It clear every particles it shows natural black colour. Really I am so happy to using this OLED TV. I think this is best tv. This tv is very slim