I just got a 2nd Apple TV 4. It's updated, connected up fine but I get a flickering picture at random times on the home screen, apps, everywhere. The 1st Apple TV 4 is fine. The TV is ok on freeview, PlayStation connected to it is fine. Only happened since I bought this Apple TV 4 and connected. All the video settings are auto, picture is fine it just flickers randomly everywhere, watching iTunes movies, music, games, everything. I've restarted TV, Apple TV, updated to v10.2.1, checked connections etc.