That's not how you maximize the usefulness of a home theater system.
View attachment 21473
THIS is how to maximize a home theater system! And you only need 4 additional speakers, a channel selector and some cable. Now you can enjoy an intimate experience or a broader one as well (to expand on your idea)!
Now I know some of you are going to point out the obvious issues, but don't worry about doing that. I'll just ignore all of your questions and provide nothing from this post forward other than "it works great" and "refer to the op". We don't need to be worrying about silly stuff like imaging, lobing or expense. Just do it.