Hi,
From some research i know this room is always going to be problematic... but here goes.
Dimensions are, tv wall 3.5m, side wall 6m, wall opposite tv is 3metres, eveything else is pretty much open to hallway/kitchen/dining room etc with tiled floor.
Ceiling height is 2.7m.
My main issue is the echo, i think this is what im going to focus on.
The other problem is lack of bass, but im guessing a sub can fix this easily.