I'm having a continal problem with my Samsung 6300 4K and a FIOS DVR box. Randomly when I power on the TV, the video from the FIOS box will go blank with just audio. I have to hold the power button down on the TV to 'reboot' it, and it usually resores the video. I've called tech support, they said they've had problems with 4K TVs and to use the component video, which has poor quality. I'm sticking with HDMI.
I've called about this months ago, and they said there would be an update to the box to fix this. However nothing has changed, and this problem persists.
My old Sony TV had zero problems with the FIOS box, so I'm sure it's an issue of the TV and the box. Does anyone have insight on this?