This is weird I can use the Prime Video app fine Monday through Saturday but come Sunday night the quality keeps dropping down from 1080p to SD. It also takes longer to buffer. I also can't even seek through the video without it buffering. I am forced to use my 3rd gen FTV dongle which works fine except I hate the dongle because of audio drop outs and annoying forced trailers to there dump originals that play before the start of the video (back out and load the video again stops that) I don't care about. The other days of the week it starts right away in HD. I can seek through the videos no issues. Come Sunday the video app is abysmal. Before anyone says no it is not a DNS issue, my speeds are still a constant 70mbps down 5mpbs up. I also rebooted the Apple TV too.