In the USA if you register your set you often get 3 more months on the warranty. Do that now then call it in. In the USA it's 1800SAMSUNG.
My one year old UE55D7000 started a few weeks ago to show green dots on the screen (not on the edge of the screen). At the beginning I thought that it was bad reception from cable or antenna, until I had all coaxial disconnected from the ANT input and could see these green dots on XBOX or USB external inputs
The presence of these green dots is intermitent, they come and go for no apparent reason.
Any ideas what this could be? I've tried several different settings on the picture menu but nothing helps.