Dealing with a large TV between speakers


Thought I'd post this since it's a glaring problem (somewhat literally, very figuratively). I've got a 50" rear projection LCD TV between my speakers that has to be there for many reasons (HT/living room/etc). Soundstaging on the x and y planes seems OK, perhaps a little narrow, but forget about the Z plane. All the action seems to take place horizontally between speakers, with vocals perhaps a bit projected forward.

I've done the Master Set method on my speakers. They are ~3ft from the rear wall and about 7.5' apart (measured from drivers) . The TV is about 20" out from the rear wall and 4.5' wide. There is roughly 18" between the speakers and the sides of the TV.

For a better visual, I've created a drawing here that I've used for submission to various acoustic panel websites.

As you can see, speakers and TV are along the long wall, and I only have about 12' total between that wall and the wall behind me. I can't move the speakers out too much more, and based on Master Set and the rule of thirds, they seem to be where they should and they do sound good there (no bass bloat, clear imaging, etc). There is roughly 2' of space between the rear wall and my head.

What I've done so far for treatment are the acoustic and diffusion panels you see in the picture, and I've wrapped thick round foam pipe insulation (the tubes you can buy at Home Depot) vertically along the sides of the TV, which seems to help. I've also experimented with hanging a diffusion panel or light foam panels over the front of the TV to cover the front. However, I'm not noticing much of a difference with the front of the TV treated or not, surprisingly (I assumed that there would be more glare and smearing with such a large, untreated, reflective surface between the speakers and directly in front of me).

Outside of throwing a blanket over the TV (which I tried, didn't really work) do you see any way to accomplish more depth to the soundstage? Questions and comments welcome, but keep in mind, I can't move the TV.
tholt
Less toe-in. Maybe a bit closer together. Try swapping diffusion panels position with absorption panels. Maybe some corner foam or soffit traps at ceiling/wall on front and back walls.
Tholt - I have exactly same situation, same TV and similar stand plus exactly same Hyperion speakers. Speakers are on the long wall and sofa is on opposite wall. I agree with Shadorne that reflections from the wall (especially back wall) and not TV create problem. I tried to cover TV with multiple blankets and it doesn't change imaging (pretty good). I bought high density 2" thick sound absorbing panels effective equally down to 100Hz and plan to finish them and hang (twelve 2'x 4'). I was once in the room with all walls made of such panels and effect is amazing. My own voice sound cleaner and other people voices come from exact points. I have also very tall cathedral ceiling (starting at 12') and too much reverberation. Windows curtains (or similar covers for the walls) don't help much because if I can hear sound standing behind them with almost no loss, then sound will bounce back from the window (or wall) thru the curtain.
"I agree with Shadorne that reflections from the wall (especially back wall) and not TV create problem. I tried to cover TV with multiple blankets and it doesn't change imaging (pretty good)."

Your experiment means nothing. The TV is still there whether you covered it or not.
Rrog - why do you think this experiment means nothing? Main problem with TV, in my opinion, is that it might create secondary reflection from it's shiny sound reflective screen. If that would be the case then covering TV with sound absorbing material should change something.

You stated that TV is still there. Yes it is, but we're talking of acoustic presence of it that can be reduced. It's like saying that in studio sound absorbing material on the walls does nothing because walls are still there.