Right, Diego - as promised, here's a few ideas about your new living room area and surrounding spaces. Apologies for the delayed reply - was travelling extensively over the last few weeks and struggled to find time. I also see you've received good input on the 'technical' aspect so I'll skip that and jump straight into the 'architectural' part
Below you can find a few images depicting a possible layout for your main living space
I have used the small pillars / breaks in the 'long' wall to aid with spatial definition / separation - I've assumed those are structural but if not - you can consider demolishing them. Immediately to the left of your entrance door I've positioned a small reading / library space with a 'feature' in-built shelf against the wall. The bay window forms a lovely semi-private space 'away' from the rest of the room with a view (possibly something nice, I don't know?) and a pleasant environment to place a comfortable chair and indulge in a book or magazine. This space can also be used as a 'second' lounge when you are entertaining - i.e. if the 'women' aren't keen to watch the sport on TV - they can break away in this space and gossip away. The built-in shelves also form a nice pattern against a wall which appears (from the photos you posted earlier) rather bland and openings free
The next space is obviously your TV area / lounge with a texture/feature wall forming the background behind your TV. From the images you posted earlier I'd assume you enjoy contemporary / minimalist interiors hence the choice of furniture and fittings. In addition - in keeping the space relatively open and clutter-free - you need to make use of your furniture (couches in this particular case) as objects in helping with your spatial separation. There is a ceiling bulkhead mounted above (omitted from some of the images for clarity) which further helps to articulate the TV area and also serve as an element to possibly mount speakers, lights, etc. Bulkheads are relatively inexpensive while in turn adding quite a bit of character to otherwise ordinary spaces.
I'm not sure what happens 'beyond' this space as it goes into your dining area so I've positioned a small drinks cabinet to the right of your TV lounge and left the rest open. A nice art-work can complement the wall if preferred.
This is just one of thousands of options, depending on budget and scope of 'demolition' wanted - I've kept your original carpet although if budget allows, I'd recommend you look into tiling or even some of the epoxy or concrete floor finishes - depending on preference. Those are great, durable textures imv and very popular in contemporary (minimalist) interiors. Also in some cases can cost less than (good) tiles.
Good luck, mate and if you have any questions, drop a line