Okay - different knowledge set required here. My son (in big trouble) has put nail varnish on the TV screen (also the door & the kitchen floor). I have tested nail varnish remover which did nothing. It would appear that nail varnish remover only removes nail varnish from nails - go figure. I can sand & revarnish the wooden door and it came off the floor easily enough with some gentle scraping. neither of these options will work well with the TV though. Tried some water/vinegar solution without success. Also windolene not effective. Any other ideas?