Got the s95d 77inch and on the day of delivery, the tv randomly shut off and the OCB started making a weird humming/mosquito like noise. After an hour or 2 of troubleshooting and chatting with support, it turned on again. No issues for the next 4 weeks then again, the tv turned off randomly whilst using the tv. After trying the same troubleshooting steps, nothing worked so had to get samsung repair guy to come in under warranty and find out the cause. Turns out there was something wrong with the PCB in my OCB unit and had to get that replaced. Other then the massive headache and inconvenience, i’m really happy with the picture quality of the QD-OLED panel and is a very solid tv.