So my setup is as per my sig. When I bought this TV the networking capabilities were primitive as was the support for video file formats. So I have a PC, running JRiver Media Centre, that pipes all of my movies/series (ripped and stored on NAS, mostly in MKV format) to the TV via the receiver. Going 4k and using the same architecture would mean a new PC and a new receiver would be required. My question is whether the media playing capabilities of the latest TVs would make the PC surplus? Are PCs redundant with the latest, more capable TVs? I'm envisaging a setup where I can hopefully keep my current receiver to handle digital audio from the TV, but it would no longer be handling video switching/upscaling. I'm more than happy with my audio setup. If this is viable then which manufacturers have the best software in this regard? If I still need a PC for media player functions this could get very expensive. Thanks for any help.