Hey guys Just invested in a new Samsung 4K tv (UE75JU7000). This is coming in a couple of days and I am well excited. I have an ageing Marantz Nr1601 receiver that I want to now upgrade so I can take advantage of 4K passthrough etc. I will be running an HTPC. I am planning to upgrade the graphics card to a GeForce GTX 960 so that I have HDMI 2.0 support. I want to be playing all the videos I have recorded in 4K with my mobile phones and cameras. I want to pass through video to the TV but want to process all sound with the receiver. Moving forward, I will probably look at adding the new spec of UHD blu ray player which will need HDCP 2.2 as well. Other than that, I am not sure what else is in the pipline for things like playstation and chromecast (which I currently have). On a quick google search, I found that the new Onkyo TX-NR646 (2015) and TX-NR636 (2014) fits the bill well (in my current price range) however, as I am not an expert, I'd like to know if this is the best choice for me. Currently I am only looking at compatibility and adaptability without giving a lot of thought on sound, asthetics or ultimate future proofing. What are your thoughts and suggestions on this? Is this the right receiver or is it too much focused on the now. Is there a better receiver in the works? What should I look out for when buying? Any first hand experience with the NR636?