Originally Posted by krichter1
However I was most interested in his comment about being ready for Satellite but that if Sky opts to broadcast at 10bit 4:4:4
the projectors would need a firmware
update. That sounds promising as I assumed something like that would require a new chip. Maybe they'll have more flexibility than we're going them credit for in possibly being able to support more UHD output formats??
You're right Kevin. If Sky opts for 10bits at 444 (although it would probably be 422 10 bits or 444 8 bits as I believe 444 is only supported at 8 bits or 16 bits), that will be 50p (as we're in Europe). Even if it was limited to 422 10 bits or 444 8 bits, it would still require HDMI 2.0 full speed (even the Sony 500/600ES or 1x00ES will not be able to handle this as they are limited to the HDMI 1.4 speed of 10.2Gbits/s). Have a look at Ron Jones' excellent post here
to see what current limited HDMI 2.0 implementations can support. It would have to be 420 8bits in rec 709 for the JVC to stand a chance to support a UHDTV source at 50 or 60p.
So if JVC can turn an HDMI 1.4 machine limited to 10.2Gbits/s into a full speed HDMI 2.0 machine at 18Gbits/s with a firmware update, they are true wizards
This is also assuming that Sky will not follow BT.2020 recommendations for UHDTV first level (4K)
, which requires at the moment rec2020 at 10 or 12 bits, (which no consumer display, including the new Sony models, can support). No firmware update will grant a wider native gamut to the JVCs (or the SONYs). The BT.2020 recommendations might be revised or made more flexible to accommodate more displays, but that hasn't happened yet as far as I know.
This is even before HDCP is taken into account, as it is likely that content owners (ie studios) will want 4K movies broadcasted in 4K to have better content protection, hence a 4K topbox will likely require HDCP 2.2, which the JVCs do not (and will not) support, as it's been recently confirmed.
I've made an excel spreadsheet for myself that shows that the JVCs are unlikely to support ANY future source of 4K commercial content given their limitations (no rec2020, no HDMI 2.0, no HDCP 2.2). The SONYs fare a bit better thanks to their 4K server in the U.S. and their possible compatibility with Bluray 4K as they support HDCP 2.2, but they don't stand a better chance of supporting UHDVT unless the BT.2020 recommendations are revised or Sony offers another hardware upgrade when full speed HDMI chipsets become available.
This doesn't mean the 2014 is not a very exciting range (I'm buying an X500/rs49 myself to upgrade my rs45 and I'm very excited about the improvements I'm expecting to enjoy over the next couple of years), just that they have about zero future proofing with 4K commercial content. Buy them for upscaling 1080p, or if you have unprotected 4K content (like from a gopro Hero 3 or a Red camera), but don't buy them under any illusion that they are future-proof for commercial 4K content. Which honestly isn't a big deal unless you're planning to keep your projector for more than 1-2 years, as it's going to take a while (at least a year) before standards are defined and actual content is broadcast/delivered.