I use a micro-fibre cloth dampened ever so slightly with distilled water. I wipe quick and fast not leaving the moisture on the screen for too long thus avoiding streaks ( your screen should not be dirty, more than anything it's just to remove the surface dust that clings to the screen) I then use another totally dry micro-fibre cloth as a final cleaning cloth. If your TV is in a house that is smoked in, that will definitely leave a coating in your screen that can streak and be difficult to remove.