New house and not sure how to best lay out our furniture. Space is 24'L x 13"W. There is an arch entrance to the Dining room on the left side of the couch and arch entrance to main part of house on the right. There is space near the stairs that seems so far from the main room. I have a sofa table and TV that I would like to include. Can't put the TV over the fireplace due to plaster / brick walls. Could block the opening going to the Dining Room but not the main walkway. Any suggestions???