I watched the ravens game last night on my FireTV Stick 4ks using the Fox Sports app authorized with YTTV as my provider. It was 4k HDR and the video quality was excellent. Best I have seen so far this season. Looks like they have finally gotten their technical issues resolved at least on the FireTV Stick 4k. I tested it on my other streaming platforms (ATV 4k and Nvidia Shield) and it was just 4k not HDR and really wasn’t that good.