I have been used this TV for about 2 years and 6 months, I have same problems, which are automatically turn it on and off, and noise screen, and now i have air bubbles on the right bottom of screen. I called service and technician took a look this TV, he said he can not fix it, because Samsung don't make the parts for this model any more, It is really sucks. I have another TV from Panasonic, It has been used for 12years, still working well. What should I do?