For a start, Ultra HDTV is 16 times the resolution of Full HD. NHK thinks that trial broadcast in Japan might begin in 2020. However, they are going to use the Ultra High Definition broadcast system at next year’s London Olympics to cover some events, as well as the opening and closing ceremonies, for public screenings in the UK, US, and Japan.
According to NHK, the idea screen size is 85-inch and it can produce surround sound with 22.2 channel audio. Incredible!
In addition, Ultra High Definition enables surround sound production with 22.2 channel audio. This mixing system uses 3D panning to create sound images at desired positions in a 3D space. Over 1,000 sound sources can be mixed simultaneously.
or watch this video.