Hi Watcher, Thank you for your feedback regarding the screen abnormalities you're seeing on your TV. To help determine if the issue is related to the panel itself, we recommend starting with a Picture Test, which displays a high-definition image you can examine for flaws: Settings > Support > Device Care > Self Diagnosis > Picture Test If the issue appears during the test and across all sources (built-in apps, HDMI devices, etc.), it may indicate a panel-related concern. You can also try displaying solid-color test videos (red, green, blue, black, white) from a USB drive or YouTube. This can help you identify whether any pixels are stuck or not functioning properly. In some cases, unplugging the TV for a few minutes and rebooting it can help resolve stuck pixels caused by temporary display behavior. If the problem persists after these steps, the TV may require service. To set up a service appointment, please contact Samsung Support at 1-800-SAMSUNG, 8AM – 12AM EST, 7 days a week. LiveChat and additional support resources are also available through the Support link on our website. ~ Samsung Advisor

Hi James Vineyard,We appreciate your feedback on the picture quality of Samsung’s U7900F TV. If the image doesn’t quite match your preferences, there are several adjustments you can make to better suit your viewing environment and content type.First, please ensure your TV is running the latest firmware, as updates may include important picture quality enhancements. Go to: Home > Left directional button > Settings > Support > Software Update > Update NowTo explore picture mode options, navigate to: Home > Left directional button > Settings > All Settings > Picture > Picture Mode. Options include:• Standard – Ideal for general viewing• Dynamic – Brighter and more vibrant for well-lit spaces• Eco – Optimized for energy efficiency• Movie – Best for viewing in low light• Filmmaker Mode – Preserves the content creator’s intent and disables motion smoothing for supported contentYou can further customize your image by going to: Settings > All Settings > Picture > Expert Settings, where you can adjust Brightness, Contrast, Color Tone, Sharpness, Contrast Enhancer and more.If you’d like help finding the best picture settings for your preferences, please don’t hesitate to contact Samsung Support at 1-800-SAMSUNG, available 8AM – 12AM EST, 7 days a week. You can also LiveChat with an agent or explore additional resources on our website by clicking the ‘Support’ link.~ Samsung Advisor