he ITU Radiocommunication Assembly considering a)that terrestrial television broadcasting undergoes the transition from analogue to digital emission;b)that digital emission can provide opportunities for enhancements of broadcasting, including:–HDTV;–digital three-dimensional (3D) TV broadcasting; portable reception;–mobile reception; high bit-rate data broadcasting;–multimedia broadcasting;–interactive broadcasting;c)that there is considerable interest in maximizing the efficiency of the digital terrestrial television broadcasting;d)that there is considerable progress in development of compression techniques for digital television.