Got the shut down and 7 blinking light issue again last night. Did the same procedure as before, unplugged the power cord from the back and let it sit 30 minutes, then unplugged the HDMI cables and plugged the power cord back in and voila, back to working normally. This is the second time this has happened, last time was about 7 weeks ago. Any idea why this is a random occurance? I would think a failed part on one of the boards would be a permanent shutdown. The tv is on a stand in the open, and the house is cool....... fans work fine...... I don't think it's an overheating issue, but I could be wrong. Any ideas?