What I am thinking is simply removing the center stool and placing the speaker sideways on a small table for movies. I only watch one a week, so it is only a temporary challenge.
All 5 tweeters are at ear level now. Golden rule.
I spend hours each week listening to music.
But, I may take your advice of wall mounting the plasma. It gives an early reflection point for the center speaker.
The only audio components that need to be in the mix are the Oppo and the Onkyo. I can place them on small stands between the 3 fronts.
Audio wins over video.