it's a living room - and generally is heavily subjected to WAF

i think basic home decor can help start it off - the idea is to break up flat surfaces as much as you can, so

- cloth covering for the glass coffee table (this is a major culprit)
- rug directly in front of TV
- bookshelf / display cases sides and behind

will help break up first reflections

after decorating the living room, then try and get charts

Check this out