ITU

The primary defintion is the International Telecommunication Union (ITU). See their web site at www,itu,int .

In the field of selecting a digital video recorder (dvr), ITU, or sometimes ITU-R, refers to the International Radio Consultative Committee, a subchapter of the ITU. The ITU-R is a global organization for the managing radio frequency spectrum including television standards. It was formerly called the CCIR.