Make space for life
The living room is no longer a place where we just watch TV. We spend time together in new ways - doing homework, listening to music and surf through the channels. A lot goes on here and may well need storage. It's easy to drown in all the stuff that turns up nowadays in the living room.
Why not hide shelves for books, technology etc. behind sliding doors? The doors could blend in or stand out by using colours and materials that reflect the character of the room. And if you want to display your things, you can build a bookshelf using hang standards, wallbands, brackets and shelves.