Hi iversonhof, 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 Esdrrfer, We’re sorry to hear you’re not fully satisfied with the picture quality on your Samsung U8000F TV. If the image appears too dark, we suggest disabling certain energy-saving features, which can automatically adjust brightness and affect how the screen looks. Go to: Settings > All Settings > General & Privacy > Power and Energy Saving, then turn off Brightness Optimization, Energy Saving Solution, Motion Lighting, and/or Contrast Enhancer. You can also adjust the Picture Mode to better suit your environment: Settings > All Settings > Picture > Picture Mode • Standard – Default mode for general viewing • Dynamic – Brighter and clearer, ideal for well-lit rooms • Movie – Best for dark room viewing • Eco – Energy-saving mode • Filmmaker Mode – Preserves content as intended by creators To fine-tune brightness, go to: Home > left directional key > Settings > All Settings > Picture > Expert Settings, then adjust the Brightness level (0–50) to your preference. Lastly, please make sure your TV is running the latest firmware: Home > Home > left directional key > Settings > Support > Software Update > Update Now We hope these tips help improve your viewing experience. If you need further support, feel free to contact us 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