Hi Freckles1234, Thank you for choosing Samsung and for your feedback on the U7900F TV. We understand sometimes there is a learning curve when you get a new TV! This is why we created step-by-step guides, to make it easier for you. To learn about your TV go to https://www.samsung.com/us/support/answer/ANS00062199/. We are also always available and happy to help you with any questions you may have. You can call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~Samsung Advisor

Hi RB1969, We appreciate your feedback regarding response time. For optimal performance, please ensure your TV is running the latest firmware. You can check this by going to: Home > left directional key > Settings > Support > Software Update To further optimize performance, try running Device Care, which checks memory, clears unused cached data, and closes background apps: Home > left directional key > Settings > Support > Device Care > Start Device Care If issues continue, please reach Samsung Support at 1-800-SAMSUNG (8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun). LiveChat is also available via the ‘Support’ link on our website. ~ Samsung Advisor

Hi Kevin B, 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 – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun). LiveChat and additional support resources are also available through the Support link on our website. ~ Samsung Advisor

Hi Denyse, We appreciate your feedback regarding response time. For optimal performance, please ensure your U7900F TV is running the latest firmware. You can check this by going to: Home > left directional key > Settings > Support > Software Update To further optimize performance, try running Device Care, which checks memory, clears unused cached data, and closes background apps: Home > left directional key > Settings > Support > Device Care > Start Device Care If issues continue, please reach Samsung Support at 1-800-SAMSUNG, available 8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun. LiveChat is also available via the ‘Support’ link on our website. ~ Samsung Advisor