Good day all, I am hoping that I'm posting this in the right place. I have a UN65HU9000FXZA with the SEK-3500U/ZA. Within the last week on intial power up I get the logo and then displays whatever is on the selected input. After about a minute being on the screen goes black and no audio. Remote function is normal, as I can get a menu, input menu and smart hub. When I change to another input it works fine. When I change back to the orginal input everything displays normally, video and audio. On any input on power up has the same result, and have to change the input again everything is normal. The entire time the TV is on the problem never happens again. Thank you for any help and have a good day.