Do you have photos of the other side of the room?

There are some really great decals on line. Maybe like a tree with branches looming towards the TV one each side .

You have some nice things there and an apparently quiet aesthetic. The giant shiny black rectangle, even when it isn't lit up and making noise, is a little hard to miss. If it were my place, I would have some shelving made for that wall that basically occupies the whole wall up to about 4-5' and put the tv in it, along with books etc., and then put some nice artwork and whatever else you like looking at on the top. I see that you have a fairly shallow space between the window and the wall, so, the depth of the shelving might need to vary a little.

I would put 2 pictures hanging vertical to left of TV and on the right hang lanterns from hooks on the diagonal

Two vertical paintings as Karen Glassford suggested sounds good. Or, two tall floor lamps flanking the console, or screens? The decal idea is nice as well. Or, install beautiful wallpaper. It looks like you could use some lighting in the room, so I would vote for two beautiful floor lamps.

Maybe a tall plant in the left corner behind the chair & a floor lamp on the right side with a fairly large shade - having something on either side of the TV should draw some of the attention away from it...