13. The apparatus of claim 12 further comprising: a graphics overlay generator responsive to said closed captioning data bytes for generating closed captioning text from said extracted closed captioning bytes and displaying a decoded picture, with closed captioning text generated from said closed captioning data bytes overlaid thereon, on a monitor.
15. The apparatus of claim 13 further comprising: a video decompressor, for decompressing said encoded pictures of said video signal, said video decompressor responding to a flag indicating that a picture should be repeated by inserting an extra copy of a picture decompressed from a picture section containing said flag into a sequence of decompressed pictures, said graphics overlay generator overlaying an extra pair of closed captioning bytes, extracted from said same picture section as said flag, on said inserted extra copy of said decompressed picture.