wchris, It’s unfortunate to hear your TV is turning off by itself. Please try a few troubleshooting steps that may help solve the issue: 1. Unplug the TV from the wall outlet or surge protector and leave it unplugged for 30 seconds. 2. Check the power cord to see if there is any visible damage. 3. Plug the TV power cord back into the wall outlet. If you were using a surge protector, bypass it for now and use a wall outlet. 4. Try to update the software. In some cases, a software update can correct the problem. There is a risk, however. If the TV turns off during the software update, it could damage the TV. Updates can take up to 30 minutes depending on network speed, so if the TV is not turning off too frequently, try updating the software. If the TV continues to turn off by itself, please call us at 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Specialist