Need Some Design Ideas PLEASE :-)

So I've been "struggling" over our family/tv room, well, literally since the design stage of building our house. We've recently been talking about liquidating our couch, because the kids are going to destroy it, and I'm increasingly big on refurnishing from what you have every few years. But what to do instead???

We built our home with an open concept...kitchen, dining, family room all in one. LOVE it!

No....I didn't "clean" for picts. :-/ That's for afters, right? :-)

I'm open to everything except demoing...paint, furniture, I'd love to move the tv to the large wall, but what to put above the fireplace???, and then there's this wall....

This weird, angled, but necessary wall, that's bugged me since design stage.

That angled wall, with the large "focal" wall  where I'd like to put the tv (the wall and ceiling have specifically been wired for surround which we currently do not have), and the angled fireplace all have me slightly stumped. And don't mind that bench; it is temporary from the bridal shower! For reference, that art plaque thing is 47" x 47"!

So your ideas, PLEASE!!!  I am asking for any colors, textures, furniture, arrangement, fireplace, decor, whatever...I will listen to it ALL.

The other opening goes to the "formal" space, closet under the stairs, and out to the garage....

Here is a close up of the fireplace....

And currently, ahem, "working", on the dining space, but here it is looking back from the wall.....

I'd love for it to feel more inviting and open, but still cozy. I'm not a big fan of microfiber couches (no offense!). I love the idea of a sleeper couch and the hubby needs some sort of recliner. We always had movie nights and slept out downstairs on the sleeper couch growing up. Fun memories. :-)

So...either here on blog or facebook, please share!

Thanks and have a great weekend,

~Anneke~