Has anyone else noticed a green line flashing whilst watching BBC1. The problem only started a couple of weeks ago and does not happen every day. The line usually only appears for a second before going away, but is occasionally followed by a freeze to both the picture and sound. I have only noticed this on BBC1 but do not watch many programs on the other BBC channels. Sometimes this can happen every five minutes but more commonly it occurs about every twenty minutes on days when it is doing it. I have noticed that neither weather nor time make any difference, nor does the fact that a programe may be being recorded or on live pause/playback. Programs that I have recorded can also have this annoying problem. If anyone has any ideas it would be nice to hear from you as this is my first post.