shstar, While we appreciate your feedback regarding brightness, please know you can customize the brightness level between 0 – 50 to your preference. Go to Home > Menu > Settings > All Settings > Picture > Expert Settings > Brightness. You can also try different Picture Modes to see which best fits your needs. Go to Menu > Settings > All Settings > Picture > Picture Mode for the below choices: 1) Standard: Is the default mode suitable for general viewing environments. 2) Movie: Is suitable for watching TV or movies in a dark room. 3) Dynamic: Makes the picture brighter and clearer in bright viewing environments. 4) Filmmaker Mode: You can watch the source content (e.g., movie) as it is. If the image is defined as Filmmaker Mode, it will automatically switch to Filmmaker Mode while watching. Intelligent Mode also enables the TV to recognize and analyze the surroundings, noise, content, and your usage patterns to provide the best viewing experience. You can enable Intelligent Mode by going to Menu > Settings > All Settings > General & Privacy > Intelligent Mode Settings > Intelligent Mode. Adaptive Picture, which is among the options, optimizes brightness and provides the best picture quality in real time, based on the lighting condition and the content you're viewing. I hope you can use these adjustment recommendations to set the image to your liking. If you would like further assistance with settings, features, or functions, please reach out to Samsung Customer Support at 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week. Or visit us on the Samsung website and click on the ‘Support’ link for: • LiveChat • Manuals, Software, & Warranty Info ~ Samsung Specialist

bytheoddisea, We appreciate you sharing your experience with lag on the QN800B TV. Please do ensure your TV's firmware is up to date with version 1303.2 which includes updates to improve lag. You can check this by going to: Home > Menu > Settings > Support > Software Update. You may also want to further optimize performance with the self-diagnostic tool, which checks memory, frees up unused cached memory, and closes background apps. Go to: Home > Menu > Settings > Support > Device Care > Start Device Care I hope these tips help you enjoy your new product. You can always contact us for further help 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

Jetman5843, It's great to hear you're enjoying the design, image, and sound quality of your QN800B TV, and we appreciate your feedback regarding heat. Watching TV for an extended period of time causes the panel to generate heat. The heat from the panel is dissipated through internal vents running along the top of the TV. The bottom, however, may feel hot to the touch after extended use. This heat, however, is not a defect and does not affect the TV's functionality. If there’s anything we can ever help with, please call us at 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week. Or visit us on the Samsung website and click on the ‘Support’ link for: • LiveChat • Manuals, Software, & Warranty Info ~ Samsung Specialist