I have digital cable, and when I press power on the remote it operates the cable box and the tv itself. Now there's a problem. When you press power, it shuts the cable box off, then the tv. Some people don't realize this and just hit power and lay the remote down. Not leaving time for the TV's power signal to reach it. When the cable box is off and tv is on, it leaves a black screen, which is not pure black, brighter than the "power off black". Only people like me actually check for this and notice if the tv's on or not. It was on last night from around 11 until 7 this morning..and three hours last week just black...Will this burn black on the screen and make the picture dimmer overall? Just wondering, thanks.