We think there are two ways in which you might be able to rework this room. First off, if the TV can fit between the two windows beside the fireplace, we might try the TV there. If the TV won't fit there, then we would create two seating areas. Here are some designs of ours which might help you envision it. Note here the TV is on the wall, so if you could place the TV in between the windows you would turn the sectional to face the TV/fireplace area.
If that doesn't work you could place 4 chairs around an ottoman in front of the fireplace and keep your current set up in front of the TV.
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