I spoke to Def Tech today regarding green corners on my 53" RCA. I asked him if the speakers were shieled? He said the main drivers are but the powered sub is not. I have these about 1 ft from either side of the TV and do not have room to move them farther apart. I bought these 5 months ago. Will this go away or is the TV permanently damaged. I moved the speakers away from the TV but the corners are still green. Should be an interesting conversation with the local dealer in the morning.