Hi GNH1897, Thanks for your feedback on the U8000F TV. Please know we are here to help. First, please ensure you are running the latest Firmware Update. Go to Settings> Support> Software Update. In regards to your remote control, we apologize for any confusion, however the U8000F does not come with a built-in voice assistant or microphone. It is however compatible with external Alexa devices. If you need additional support, Samsung is here to help. Please call us at 1-800-SAMSUNG, available 8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun. You can also chat with a LiveChat agent by clicking the ‘Support’ link on our website. ~ Samsung Advisor

Hi Old guy, 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