Set up is an ATV3, AirPort Extreme, Late 2013 iMac. I constantly AirPlay my mac onto my living room TV. Up until now its been perfect, worked so well I had a feeling an update would eventually mess it up. However since updating to Yosemite and/or the latest version on ATV I get 30 seconds of stuttering every few minutes. It doesn't matter what I'm doing, sometimes I'll see it in videos which is very obvious or when I'm typing something like this in Safari. iMac is connected to the AirPort via wireless AC with a transmission rate of ~600mbps, ATV is connected to the AirPort Extreme via cat5e ethernet. I have tried using the ATV via and the issue is still there. Anyone else experiencing this? Any solutions or maybe educated guesses of things to try? Thanks in advance.