OLED, Sony, Sony TV, TV The A8F 4K HDR OLED Smart TV by Sony Tech Geek November 27, 2018 Sony showing off with their amazing A8F 4K HDR OLED Smart TV View this post on Instagram Deep blacks. Unprecedented contrast. (The A8F 4K HDR OLED Smart TV) #Sony4K A post shared by Sony (@sony) on Nov 23, 2018 at 9:58am PST Share: Tech Geek I am keen on blogging about tech news, gadgets, cars, consumer products and much more. Love most sports and being around nature as well.