My samsung 60" spoilt after 2 weeks. It was ok when the technician came to repair. After 1 week, it happened again (auto on and off). The technician came again to repair, i told them to change the main board. After changing, all is well until hell breaks lose again.
When they opened the TV, it only consist of 3 parts: LCD panel, power board and main board. One of the technicians even teased me that i spent few thousands to buy 3 boards. Repairing is easy as 1, 2, 3. Unscrew back cover, take out 1 board, put in new board. Ta da, the tv works again.
In contrast to my old hitachi plasma which lasted for 5yr+2mth and rip in Jan13, without a single breakdown!
Luckily i hv 3+2 yr warranty.