Read this interesting article today on HDCP 2.2 compliance and 4K playback. I wasn't even aware that this authentication could potentially be an issue down the line when 4K content is finally launched. Bottom line, looks like 2014 is not a good year to buy a fully future proofed 4K AVR...
http://www.soundandvision.com/content/do-i-need-hdcp-22-compliant-receiver-ultra-hdtv
http://www.soundandvision.com/content/do-i-need-hdcp-22-compliant-receiver-ultra-hdtv
