Cool room! I'd probably change out those two chairs for a pair with more color and add some colorful art (and I'd get rid of the white and blue cushions - solid yellow or orange would work better IMHO). I'd also probably find another home for that lamp, and get something more contemporary in styling. But, I'm nit-picking here...

First, remove the floor lamp. Styling is all wrong. Second, select a larger more colorful rug. Third, try swapping the chairs and the chase placement. The linear fireplace is practically invisible. Once you have the furniture rearranged, find a great arc lamp and set in corner to right of sofa swinging over the coffee table. Add small table between chairs in front of window. Last, consider painting an accent color on the fireplace wall, perhaps like the sofa color, eggplant? Replace pillows to pull color from new rug.

Thanks to all who have commented thus far. We're definitely swapping out the floor lamp, I love the idea of replacing it with some thing that will add interest to the space. We'll be wall mounting the TV (it has only been a year since I bought the mount, lol) and painting the wall behind it, again focusing on adding color. There is a view beyond the chaise that we don't want to "block" with furniture so swapping the chairs with the chaise has some drawbacks. We're open to replacing the chairs too, but we'll probably start with the smaller ideas (lamp, paint, pillows) and see if more is necessary.

Good plan. Paint behind the TV a darker color and it will help hide TV when not in use and become more of a "feature" than mystery space. You could even do a little art painting on that wall. Might be interesting. Create frame around TV? Something creative? I understand why you have the chaise where it is but it puts too much "weight" on that side of the room. If you are up for new chairs, find a couple cool swivel low back chairs. Perfect solution.

Gabby Willow Swivel Club Chair, Cream Zulu Vanilla · More Info

Here is an even better one because they have done the swivel mechanism better so you don't see a black round pipe. low back too, plus you can swing to the fireplace and TV or conversation area.

Kensington York Swivel Chair · More Info

We might try a rug with some color in it, some new chairs, and artwork over the fireplace. Here are some ideas of what might work. Note the artwork and chairs in the first image.

Living Rooms · More Info

Rug, artwork, and lamp:

Downtown Townhouse: Living Room · More Info