At present, the first results on studies related to Study Programme 18U/11 have been collected. It must be recognised that these studies must be intensified in close cooperation with such organisations as the IEC and ISO to take fully into account the requirements for implementation of HDTV for media other than broadcasting, i.e., cinema, printing, medical applications, scientific work, and video conferencing. In addition, the transmission of HDTV signals via new digital transmission channels or networks has to be considered and taken into account.