Just bought a new Roku TV and the picture is just not as clear or crisp as I thought it would be and wondered if there was a plastic sheet on the big screen. I took the wrapping off around the edges and there was an energy-saver sticker but nothing came off the big screen. Was one placed there?? How do you get it off? I don't want to damage my TV by trying to remove something that is not there. (Tried the tape method at the corner and nothing came off)