Thanks guys for all your replys, downloaded smarters pro app on my Sony A95K 4k oled works ok , watching sly uhd (IPTV ) settings in app res showing as 3840 x2160 but little disappointed in picture , ? also tried on firestick 4k same channel , but on firestick I can check what I am really recieving Resolution /data ect using ( developer tools menu app , ) which confirms recieving 3840x 2160 , bt2020 hdr10 , but cannot download this app to my TV to check that the smarters pro app is giving me same , hence the question , anyone now off equivalent app for smart TV ? Thanks