So I got a new Vizio TV! It has 5 hdmi ports and only one of them is labeled 4k@50hz. I looked in the video settings on my Apple TV and it has Auto selected for output, but the footnote states output is currently at 1080p @ 50hz. So is the 50hz hdmi port on the TV the best one to use for the Apple? I've tried to do my homework on hz and different hdmi connections, but it's not sinking it. I have it plugged into that one now and it seems to work great. I have not watched a quality HD movie or anything on it yet though. Thanks for any info.