it looks like maybe that's the only reasonable spot to put your TV? if you really think you think you'll never use the fireplace, may as well get rid of it. I'd drywall over the nook so the TV can be centered.

if you did a new fireplace, make sure it's low enough, and don't add a mantle -- that way the TV above it won't be too high.

Is the fireplace your style or not?

Not at all, unfortunately nothing in this house is our style! Our style is more minimal with a bit of mid-century mod influence, so we will select a tile to redo the fireplace if we keep it.

Did you redo the floors before you did the FP reno? Hmmmm!

Thanks Jean I have my tv in front of the niche right now but I would love to take you up on your offer. I don’t have those skills. Let me see if my husband can move the tv.

@decoenthusiaste yes before we moved in we ripped out all of the flooring throughout the house and replaced it with 4’ wood look tile planks from AZ tile. I like a cohesive floor and this is our forever home so with aging in place we have no trip hazards between rooms. We have extra tile in the same lot to allow for future reno. We knew the fireplace had to change so we removed the hearth when we demo’d.

That was an expensive project so each project will happen slowly so we can pay for it in full.

That’s a really interesting solution. I have two challenges there I have two niches one above the other and my TV is bigger than my niches. I hadn’t thought of a pop-up solution so I’m going to keep that in mind thanks so much!

I like the idea of making it MCM inspired, but don't go too midcentury, as it may clash with the rest of your house--unless you are considering doing a bunch of remodeling. based on your pics, I think a style like this could look good, but with a lower bench and no shelf above it:

or something wide and low slung. this one might be too dark, but note the shape, and how the TV is not too high up:

or.... when I look at your first photo, it kind of looks like you might be able to lay out the room so the TV is on the big wall to the right? would that work? fi so: I think your existing FP is kind of midcentury inspired with the flagstone surround. what if you kept it, turned the nook to the right into a bookcase and/or wood storage?

finally, forgot to mention, if you do insist on mounting the tv above the FP: wood burning is a hazard for TVs. you'll need to either not burn anything and leave it as decorative only, or do a gas or electric insert.

Cut out that middle shelf in the TV nook, patch and put in 2" thick wood shelves (stained to match your furniture) with LED backlighting and a small cabinet at the bottom for Media equipment, extra blankets/pillows, or Board games.

Good time to switch to the linear gas or electric fireplace to update the look and to let the tv above be lower. 

Run the fireplace facing to the ceiling, slightly wrapping the corners & niching it for the tv (or statement artwork) if you want. 

For mid-century modern or Scandinavian style, a medium-light linear natural stone or slate would look good on the fpl.

lower one = firewood storage nook