MicroFiber TV cleaning cloth Due to the position of the lenses in big screen TVs, dust settles on the lenses and may cause your picture to be dim or not as bright as when your TV was new. If the TV is or has been in a house where there was cigarette smoke, the mirror may be dirty due to the tar residue from the smoke that was in the air. If remodeling is done in your house or if you keep your windows open, dust and dirt build up on your lenses happens faster. If the TV is old, there may also be cobwebs inside where the lenses and mirror are located.
