After a week trying just about everything I'm reaching out for help. Have three Onn (Walmart) boxes and the boxes all work great. However, with one newer Vizio tv I have it'll say "NO HDMI DETECTED" after a few minutes and especially when changing channels. This happens on any streaming app. Swapped out the box with other Onn boxes..Same issue. For the heck of it, I connected a Roku to the Vizio tv, no problems. It seems like this box does not like this particular TV. Thinking of getting an HDMI to RCA converter to bypass the whole HDMI connection. Anyone know of this has anything to do with the SDR/HDR setting? When I flip channels that SDR thing will pop up. Can't turn it off on the Onn box.