With all the 4K/UHD displays on hand at CES, the next big question is, where will the native UHD content come from? At least two companies offered answers to this question. LG was demonstrating UHD over-the-air terrestrial broadcasting in conjunction with the Korean Broadcasting System (KBS), which has been running trials of this system in Seoul over a coverage area with a radius of 10 kilometers. The system transmits UHD at 60 frames per second (progressive) using a new codec called HEVC (high-efficiency video coding), aka H.265, which allows the signal to be transmitted at 35 Mbps, a 75-percent bandwidth savings compared with MPEG-2.
In the LG booth, the transmitter was behind the wall holding the 65-inch UHD TV seen above. Two antennas, which can be seen on either side of the TV in the photo, are required to pick up the signal, and the decoder sends the image to the TV via two HDMI cables. The KBS-produced content looked quite good to my eye.
Sony announced a distribution system that will provide UHD content for download to a server, such as the prototype shown here. The service is planned for launch this summer. Sony also announced consumer-oriented UHD camcorders, allowing you to create your own 4K content.