p602ui-B3 and AppleTV Soap Opera Effect

I picked up a Vizio P602ui-B3 yesterday. It's a great panel, but I noticed while watching Game of Thrones from my AppleTV that no matter what I have set (Clear Motion, etc. is definitely off) there still seems to be a vague sort of Soap Opera Effect to it. It's really annoying.

Is this just me not being used to a panel of this size and speed, or is the ATV maybe not pulling down correctly? I haven't had time to watch a blu-ray yet, but I'll give it a look tonight.