Got a new LG 75UM7570, and now when playing most content on Netflix or anything connected to the Mi box (I have an external HDD also connected), it has a little juddering and it drives me nuts and I dont know what the issue is. For example, It happens when playing Vikings or Flash but not when playing The Dark Tower.
Important thing to note: This DOESNT happen when I play Netflix via the TV app itself. Only when played via the Mi box. Via the TV app Netflix runs just fine. But again, its also content played from the HDD connected to the Mi box, so it has to do with something about the Mi box??
Also, This DIDNT happen with my old 55 Hisense TV.
I had a same/similar problem with a new LG TV I got for Christmas. I think the fix for me was to change the HDMI CEC settings in Android TV settings. Can't check exactly what the setting was called now, but check for something similar and try to toggle the settings.