For the price you pay for a Plasma screen, you will want to go to some lengths to avoid damaging the device because of one careless cleaning. When cleaning, you will want to use a single use wet/dry combination product so that in case there are contaminants on the screen you cannot see, you will not move them to other screens by reusing the same wipe. You should also allow ample time for the unit to cool before cleaning the hd plasma television screen Most cleaning solutions will be evaporated on a hot screen before you can go back over the screen with a dry wipe and pickup the dissolved contaminants and suspended dust. The reason for turning off the Plasma display is the heat they typically generate. See the wet/dry cleaning product link below in Sources and Citations.