Thanks for bringing this to our attention, Elignton. Could you give us a call at 1-800-SAMSUNG or use the live chat on our website (www.samsung.com/ca/support)? We’d love to help, but will need a little more detail about the issue. 

Chuck: I am very sorry to see that you were not happy with the picture quality of your unit and have returned it. Should you ever decide to give Samsung TVs another try and have questions or need assistance with settings, setup, or features, please know we are always here to help. You can also check out our entire 2020 TV lineup from our 85" 8K flagship Q950TS QLED TV to our lifestyle The Frame Series and more at: https://www.samsung.com/us/televisions-home-theater/tvs/all-tvs/ Again, my sincerest apologies. We hope to regain you as a customer in the future. ~Samsung Solutions

Robert Z: Thank you for your review of Samsung’s TU7000 TV and for sharing your experience with the screen flashing. If your TV is out of the 1-year Manufacturer's Warranty, you can locate a service center in your area on Samsung's website. Go to Support (upper right corner) and select Schedule a Service Appointment. This will allow you to find a location nearest you to help you with your repair. Should you have additional questions or wish to troubleshoot the issue, please call us at: 1-800-SAMSUNG (ask for TVs), available 8AM - 12AM EST, 7 days a week. Samsung is committed to providing the best possible product experience, quality, and value, and we are always here to help with any of your questions or concerns. - Samsung Advisor