Does anyone know why my TV keeps glitching (and now has started to pixelate?). I have had Virgin for 10+ years and TIVO since it came out with no problems but over the last few months this has become a dreadful problem. HDMI has been changed, TiVO box has been changed but the problem is still there. It is worse in an evening and strangely gets very much worse when I have the tumble drier on? Please help. Many thanks.