This is the exact same problem I am facing only I’ve been using our Roku Premiere with no issues for close to 3 years, all with the same TV. The issues started with Netflix over the weekend and has since progressed to it not working at all. Have tried resetting multiple times.
Re: TV flickering from Roku home screen to static and back
I have tried changing many settings and nothing resolves this issue for me. My Roku Ultra, now with 9.2.0 build 4131-46, just keeps cycling to black, No Signal, static and back again. Unusable since this update was pushed out to the player on Nov 1.
I was a beta tester for the very first Roku player, back when there was just ONE beta channel, which was Netflix. I've owned many Roku players over the years. I purchased this particular Roku Ultra almost 2 years ago, and the software update has crippled it. The update just sits on my newest box now, and Roku won't roll it back. Both frustrating and disappointing.
I had the same problem on my Vizio 4K Smart TV and have found a solution . For some reason my backlight had to be below 60 . I don't understand it but setting it below 60 worked . Everyone who has this problem should try this . You never know .