I did it on my set. Not terribly difficult, but be really careful with the screen assembly as the fresnel and lenticular screens are quite flimsy and pretty expensive to replace. What you want to do is remove the black tape holding the 3 sheet together at the bottom and slide the protective screen out from the front and place it in the back. It has to face the same direction or it'll stick to the fresnel (it'll look like water is trapped inside), so make sure the front is clean before you start.