I currently have both a Retina Imac and 2012 Mac Mini. I also have my TV in the same room. I was thinking about hooking my Mac Mac Mini up to my plasma as a media center but I was thinking Apple TV and Air Play might make more sense since the iMac is in the same room. Any thoughts on the downside of using Air Play vs having an actual Mac Mini connected via HDMI? Sound synch issues? Video quality issues?