Technician failed to understand the problem I was describing to her. The 65 inch Samsung curved smart tv that was purchased keeps flipping to a black screen with the CBSN app appearing in the upper left corner. Sometimes with audibility and sometimes with nothing. This happens when we are watching Netflix, regular cable tv, or playing video games with cable box off. The TV resorts back to the CBSN app automatically and for no apparent reason. The problem exists within the tv NOT the cable system. I paid thousands of dollars on a product of yours and you can’t be ever so kind enough to honor that and fix you not-so-smart tv.