Television progress continues. In the late 1990s, the ITU defined the parameter values for HDTV and the 720p families.
At its meeting in May 2012, ITU-R Working party 6C, the same group, made the leap forward to the parameter values for the next two generations of television formats.
These are the (current name) 4K and 8K UHDTV formats - Ultra High Definition Television.
The new formats take advantage of future displays' greater colour range, have the option of 'constant luminance' encoding, and allow up to 120 pictures/second. They are constructed as multiples of the 1920 x 1080 format in ITU-R Rec. 709.
Demo of UHDTV: http://youtu.be/9U7e_quvkPQ
Via Olivier NOEL