I have a Sony Bravia 4K UHD smart television that I've connected to my FIOS set top box using a high speed HDMI cable. When viewing HD channels I do not see an HD picture. When I have the TV show me the signal it is displaying, it tells me it is SD 480. I've done all the restarting, resetting, on/off procedures for both the tv and the set top box. The hdmi cable is brand new and I've tried all the HDMI connections. I am able to see an HD and UHD picture when viewing Netflix or Amazon video. Additionally, when testing on my old LG HD TV I do get an HD 1080 picture. I'm testing on a secondary bedroom set top box model "ARRIS IPC1100P2".
Might this be a problem with the TV set itself or is there some incompatibility between this tv set and the cable box?
Thanks.