New memberUsername: Castlewalls
Post Number: 1
Gold MemberUsername: Magfan
Post Number: 3415
I can't imagine wiping the mirror down with anything that won't scratch it.
Also? The REST of the optics are probably also coated with XXX.
I can't imagine this set still working correctly. It is a rear projection LCD type. SONY used plastic filters in the light engine which discolor and render the picture unwatchable. SONY lost several class action lawsuits over this tech. Sony is a multiple-patent holder in this space. They never learned since the SAME defect doomed the incredible SXRD models which were the follow-up to the projection LCD stuff.
Junk it out, buy an OLED and carry on. The 55" OLED sets are getting affordable and have a better picture. And no internal optics for your GF to mess up with her 'habit'.