Now that there are 4K TVs everywhere, it would take a concerted effort from at least one big TV manufacturer to right the ship and abandon use of 4K in favor of UHD and 2160p. In all honesty, though, it’s too late. That said, the more important problem isn’t really the name; it’s where in the heck we can all get some real 4K content to watch. So far, it’s appearing in dribs and drabs on services like Netflix, Amazon Instant Video, and some proprietary hardware and software products from Sony. That’s not yet enough for 4K to really take off.
To make matters more confusing, UHD is actually split in two — there’s 3,840 by 2,160, and then there’s a big step up, to 7,680 by 4,320, which is also called UHD. It’s reasonable to refer to these two UHD variants as 4K UHD and 8K UHD — but, to be more precise, the 8K UHD spec should probably be renamed QUHD (Quad Ultra HD). (Read: )
Another hurdle, aside from the lack of content, is the tremendous amount of bandwidth 4K UHDTV requires. Using the limited spectrum currently allocated to digital TV broadcasters, transmitting 4K UHDTV video streams -- although technically possible -- is not exactly practical. To conquer this issue, Japan will begin supplementing TV broadcasts with satellite transmissions until a satisfactory method of delivering such pixel-dense content materializes.