Commented: Trying to avoid TV over fireplaceCan you add extra windows by the slider and then omit one of the doors to the side of the fireplace so that you can offset the TV to the right or left of the fireplace?
Or you could put the fireplace...
Commented: Mantle decorAlso, in addition to having larger pieces of artwork over the sofa, consider hanging things (shelves and art) lower--at eyelevel.
