if you go to auto zone, they have ultra plush micro fiber cloths. They are blue. These are what I use to dry my car, as well as clean the TV. they work much better than a regular microfiber cloth due to the length of the fibers... I am fairly sure you can use rubbing alcohol, that is what we use to use to clean computer LCD displays, I am also pretty sure that LCD TV's can't be much different than computer LCD displays.

hope this helps.