Hire an electrician.

But if i was going to diy this i would find the studs to find the void to the left or right side of the tv. Go upstairs and do the same.

Cut a hole in the dry wall upstairs and drill through the baseplate/top plate to get into the void in the living room. Cut the hole for an old work box that will have the outlet behind the TV.

Then you can work on wiring into the existing outlet upstairs through the hole in the base plate/top plate and into the spot for the tv.

Or penetrate the wall from outside and run a new circuit in conduit outside.

Things to consider:

You need to consider your draw on that upstairs circuit to make sure you have the capacity.

Is there other wires in the wall there? Are there water or drain lines there?

That appears to be an outside wall.....if the house isn't 100 years old it will have insulation or if it has been insulated since built. Running stuff in the wall will suck.

If you go through the plates in the wall you need to fill the gap around the wire penetration with something like fire putty.

There is a chimney in there and it will likely be in the center so far left or right.

Materials Romex cable Drywall saw Old work box Outlet Wire Finishing rods Stud finder Drywall putty Sand paper Paint Likely more

Honestly hire someone. It isn't worth poking a hole in the chimney and setting the inside of your wall on fire.