Backstory: We had a leak in our roof that damaged some of the ceiling drywall. When we put new drywall up, the pre-existing drywall "sagged" a bit lower than the fresh piece that was screwed into the ...
I have a large hole where a TV wall mount once was (I believe the hole was used to run power and coax cable to the TV). I have since moved the TV and would like to patch the hole. What is the best way ...