With the resolution coming in at an astounding 7680 x 4320 pixels (10 bits per pixel), an uncompressed 30-minute broadcast would require about 6TB of data. The aspect ratio remains the same as with HDTV (16:9), but the framerate is set at a 60p format, while HDTV uses 24p, 30p or 60i. Out with the standard 7.1 surround sound as well. The UHDTV format supports up to a completely immersive 22.2 multichannel sound system, which was developed by NHK.Interestingly, a 30-minute broadcast in uncompressed 8K would require about 6TB of data.
Source: Legit Reviews