Projector most likely at this stage. It's about 4x5m. Open plan staircase in one corner, door to kitchen in other corner, door to utilities cupboard/alcove shelves in third corner, alcove shelves/windows in last corner.
Or I'll just get a load of VR headsets. Only half-joking.
Large flat screen TVs on chimney breasts can look a bit out of place. Especially in smaller rooms.
If you have a modest sized room, get a modest sized telly and stick it in the corner. Then let the focal point of the room be your lovely wood burner.
If you want a big screen for occasional use, a projector onto the chimney breast might be better. Solves the chasing in the wires conundrum too.