Right the main TV we had decided to no show anout 3inchs of its picture at the top of the screen! but everything else was fine. So i though no worries get a new TV for living room but i will have that one in my Bed room as it still 100 times better than my portable Anyway today the picture come on only in black and white But strange thing is the teletext etc still comes on in colour So is the main tube fooked, and can u repair them nowadays?