It seems like any newer video that lists as playing 4K HDR Dolby Vision Dolby Atmos (i.e. new Justice League and Kong vs Godzilla on HBOMAX and anything on AppleTV+) makes my newly bought Roku Premiere glitch. The video turns black and freezes for varying long or short bursts with it occasionally displaying a "No Video" blue bar on my tv (JVC LT-65MA875) and then cuts back to black and freezes in bursts. Even when I hit the Home button on my Roku remote it will return to the home screen but continue to freeze in spurts.
I've tried resetting tv and Roku systems, cleared caches, deleted and reinstalled apps, switching HDMI cables. Nothing seems to work.