How to clean a rear projection tv screen and mirror | ehow, How to clean a rear projection tv screen and mirror. you might think the only thing that needs cleaning on your rear projection tv is the front screen. other. How to clean the lens and mirrors of your projection tv | ehow, Over time, you may find that the picture of your projection tv gets blurry or fuzzy. one of the first lines of defense in avoiding this is to clean the lens and. » how to clean and repair projection tv | roobaroo, How to clean and repair projection tv. if you have a projection tv and the picture quality seems so washed out, you might need to do little cleaning up..