Re: 15 Mbps is not enough
4K TVs are a gimmick so 15 Mbps should be plenty. With racks of CPUs crunching at it, the video can be compressed using proprietary intelligence that your average freeware on a desktop can't do. This is already being done to cram more channels into a single OTA stream without the P-frame distortion and I-frame flicker you'd expect of such a huge bandwidth deficit. You also have to take into account that smaller pixels in a 4K TV allows for much larger defects to go unnoticed. The MPEG group has gotten quite good at hiding losses in AAC and H.264 so I expect that H.265 will be able to convincingly simulate details without having to faithfully encode them.