FIELD: transmission of closed captions and other auxiliary digital data in compressed video signal transmission system; teletext transmission. SUBSTANCE: system has video signal compression device producing compressed digital video signal, circuit separating closed captioning data, connecting hardware, and video data receiving unit incorporating decoder, decompressed analog video signal shaper, and processor responding to decompressed analog signal and to mentioned separated closed captioning data for shaping analog video signal containing closed captioning data within main frequency band or at high frequency. EFFECT: simplified coding and decoding hardware and software. 8 cl, 5 dwg
