The set is old, but I don't watch a great deal of TV, so it has had comparatively little use and it is perfectly adequate for my needs, so if it is repairable.............
From switch-on the picture is reduced to a thin line across the screen. The sound is fine and eventually the picture flicks on and off, then is a little liney, then fine. The time taken to get a normal picture, from switch-on, has increased in the couple of weeks that it has been doing this and it now takes 20-30 minutes (I have not timed it, but know what part of what programmes have been unviewable).
Presumably one or more components are going west, but what? Any suggestions more than gratefully received. (As of now, I have not removed the cover to look for anything strikingly obvious).