Piggy back row grabbing system

A common channel video communication system for providing a television field comprising a plurality of television video scan lines over said common channel, said television field being comprised of both at least one video displayable row of video data characters contained in a pseudo video scan line occupying one of said plurality of television video scan lines and normal television video displayable information occupying the balance of said plurality of television video scan lines;

• said system comprising means for providing said television video scan lines comprising said normal television video information;
• means for providing said pseudo video scan line;
• and means operatively connected to said normal television video information providing means and said pseudo video scan line providing means for combining said normal television video information television video scan lines and said pseudo video scan line for providing said television field over said common channel, said pseudo video scan line providing means comprising means for providing said pseudo video scan line having a television video scan line format and capable of comprising a complete self-contained packet of digital information sufficient to provide said one row as an entire displayable row of video data characters, said displayable one row comprising a plurality of television video scan lines, said pseudo video scan line having an associated transmission time equivalent to said television video scan line, said packet of digital information comprising at least address information for said displayable one row and data information for said displayable characters in said displayable one row, said displayable one row being capable of providing a continuous video display of a selectable grabbed row of video information comprising said video data characters on a video display means from continuously transmittable video information.