I go to a website, click on video, make full size, and it plays on my TV but (best I can explain) goes pixelated for a split second than back to normal every ten seconds.
I've tried using different browsers same thing. I'm not trying to do anything illegal just watch local news from their website open to the public on a larger screen.
Every thing else works flawless.
Nvidia Shield TV
i don't have a shield but my inferior mibox can do it really well with firefox for android tv. apk on apkmirror.com