James Whitehead's Profile

I am not sure if there is the space but I'd mount the tv in the ceiling immediately in front of the fireplace. This hides the tv in the ceiling until you lower it down. This is far from a cheap solution (Future Automation Ceiling TV Lift CH Series) but it would tidy up the fireplace. The other option if space is limited (and a much cheaper solution) would be to go with a projector tv and screen that comes down over the mantel. I found one here on Amazon (motorised screen)
For the area on each side of the fireplace, I'd go with a knick knack shelf system but fill the spaces minimally with treasures from your travels (for example). With the red of the walls, I'd prefer a contrasting lighter wood like white ash.