I have used WD TV Live for years but wanted something that I can "cast" to from my devices. I tried Google Chromecast when it came out but there was noticeable lag and watching the video strained my eyes. I eventually decided to get an Apple TV. After using it for two days, I noticed that it strains my eyes too, even though it wasn't as noticeable initially. Although my wife told me she felt fine. I have tried Apple TV on both of our TVs and it was the same. I have two AirPort Extremes at home and the Apple TV was very close to one of them and had excellent connection. My Internet connection shouldn't be the problem too at 60/10mbps. I tried to mess around with my TV's settings but with the same settings, watching cable (TiVO), WD TV Live and Wii are perfectly fine. Watching videos on my iMac, iPad, iPhone and Android devices are all fine too. Any suggestions before I return this thing? Thanks.