Hi Danny, Thank you for purchasing the Samsung DU8000 TV and for sharing your experience with your TV not displaying properly. Please try the following troubleshooting steps: 1. If any external devices are connected, check all input cable connections 2. If the issue persists, define precisely what is wrong with the display. For example, mosaics and blocks, multiple lines or white dots, and fixed horizontal or vertical lines. 3. Try changing channels using the remote control. Is the issue the same on all channels? 4. Press the Home button (looks like a house), select Source, and choose another input source. Is the issue the same on all sources? 5. If the same problem persists, run a diagnostic test. (Home > Settings > Support > Device Care > Self Diagnosis > Picture Test) 6. If the problem disappears during the test, check your TV signal (Home > Settings > Support > Device Care > Self Diagnosis > Signal Information) to check the signal strength. The signal strength must be more than 20 dB (more than 4 bars on the icon) for stable signal reception Should your issue persist, please contact Samsung Customer Support. 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 Catmama, I'm very sorry that your TV is not functioning properly. I've put a few troubleshooting steps below for you to try. 1) A connection issue is the most common problem where there is a bad connection, faulty cables, or improper installation. 2) An issue with the device connected to the TV. There may be a video output setting on the device that you must set properly before it will output to the TV. 3) There is something wrong with the TV, requiring a technician to assess the TV and find a solution. Please give us the opportunity to assist you by contacting Samsung Customer Support 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 Jooksing, We appreciate your feedback on the response time, and for optimal performance, we ask that you please ensure you've got the latest firmware version installed on your DU8000 TV. 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. If you ever have questions or need help, Samsung is here for you! Give us a call 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. Thanks for being a part of the Samsung family! ~ Samsung Advisor