A:AnswerFor optimal performance, please ensure you've got the latest firmware version installed. 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
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
A:AnswerCan mount to back of tv but then its about 3in thicker. I have above fireplace too. Put hole in wall and run the wire where you can hide the box. You would want to buythe behind wall cable.
A:AnswerMikeo - The QN700B TV features HDMI and Optical ports for audio device connectivity. You can also connect wirelessly via Bluetooth or Wi-Fi.
~ Samsung Specialist