I can picture a nice long narrow console to the right of the fireplace for the tv. I do not usually suggest sectionals, but I think one would fit in this space, starting on the tv side and then angling around to front face the fireplace and tv. Cozy a patterned chair by the fireplace and the window. Nice sheers over the window for softness. Maybe a palm plant there, too, to take advantage of the light. Tall book case on the wall adjacent to the window and a fun ottoman for the sectional.