I’m thinking the TV needs to be mounted about 6-8” below the window with a lower side to side 12 to 18” floating shelf or very wide simple sofa table of some sort that can have baskets or odd-shaped containers below. Plants or artwork reaching up along the sides of the TV...something to give the TV a wider framing as it’s a bit small. For drapes if you must have them, I’d do floor to ceiling subtle colored to disappear into the wall. If glare is a problem, maybe inside window pull downs.

How many people are in your household? What else do you need to put in that room? I would consider putting the tv on the left hand wall with couch where you have the tv in your plan. Put the tv on a console so it can be turned toward the couch for better viewing. The you could have additional chairs closer to the sliding doors for more people to sit when needed.

You definitely DONT want the tv in a dining space, Post an accurately drawn floor plan of the entire 12 x 26 space, with all windows, stair , walls, openings in INCHES.

@Ann Marie Thanks for the suggestion! I will look there. I'm a little partial to painted art rather than photography, but I'll see what they have. @lindac92 That sounds like good advice! How would the need for a lamp change what art would go in that space? I have no idea how to think about that at all. But you're right, probably I would want a table lamp there. I know from browsing around that sometimes art just goes behind a lamp, which honestly feels weird to me, but maybe it's fine. But I'm not sure how that changes what I would want to put on the wall there. @threers Thanks for the advice! I can assure you that I will most definitely only get art I love. If I'm going to look at it every day, it had better make me happy! But I would also like it to match the rest of the room if I can possibly arrange it. :) @Patricia Colwell I actually was originally thinking of having two couches (which I think may have the result of another comment of yours in another thread), but the problem is that I can't seem to make it work with our TV placement. I definitely want a couch to face the TV, and then the only real arrangement that works is to have an L-shaped arrangement. And if I'm going to have that, well, I have always liked couches with corners, so that's how I arrived at a sectional. But I'm open to other alternatives - I just don't know of any good ones. :)