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The TV is 4 years old. I am not sure what you mean when you say all inputs.
I am using HDMI.
I do not have the cords for the other inputs. As far as the white 3 white dots are concerned, they show up whether I am watching TV or watching a DVD movie. Those 3 dots did not start on the same day. I started out with 1 white dot and later 2 white dots and now 3 white dots. I am hoping they are not serious.
You can contact Samsung Support for the same. You have to call 1.800.726.7864 and request a service. Hope it helps.
The answer you gave sounds about right. It definately does not sound like a cheap problem. Is it safe to ignore the situation it since I can still use the TV or will more things happen later if I ignore it?