The ITU Radiocommunication Assembly considering a) that conventional systems for television are not ideal in respect to picture quality, for example sharpness and sense of reality; b) that transmission of wideband video signals in bands for terrestrial and broadcasting-satellite systems as well as over cable systems may be possible; c) that progress in the development of displays will permit the use of large-screen, high-definition television displays for domestic viewing; d) the existence of Recommendation ITU-R BT.709; e) the desirability of compatibility of the HDTV studio standard with a number of vision standards, likely to include conventional PAL/SECAM/NTSC, digital 4:2:2, and enhanced vision systems based on components.