Don't have the mount yet. Did frame in the bottom of the opening so I can close it off. Cut a piece of thin under layment to fit in the opening. I plan I getting some vinyl like the rest of the underside to wrap on the under layment. There'll be some seams but hopefully won't look too bad.
Don't think heat will be a problem. No holes or fans with the old tube TV. LED/LCD TVs generate very little heat. It won't be sealed up and the TV will be lowered down when viewing so the upper portion of the opening will be exposed.
Linear Mode
