So I'm looking into using my 13" rMBP with a 4K TV as my monitor. I've tried doing it with my current 1080p TV but the picture (especially text) is not that great. So I want to upgrade to a 4K TV. So I kind of have two questions. In my research it appears that all components of a setup (tv, receiver, blu-ray player, computer, ATV, etc.) need to support the HDCP 2.2 protocol to be able to get the 4K picture. Does the 2014 rMBP support that or could Apple enable that with a software update? Also the rMBP sends a 4K signal (3840-by-2160) at only 30Hz whereas a 4K tv processes at 60Hz. Would that present an incompatibility issue? Would 30Hz from the rMBP be too slow? Thanks for any help.