Hi Sapphire, Wow, I'm really excited about your reno project after seeing the reference picture. I was like you taken in by the nordic, scandinavian design because I love the big airy white space and using of wood etc to add texture and color to the space. Can see that you already have the design direction so it will be much easier to articulate it with your ID. After discussing with your ID on the color and design of your space, next will be the choosing of the furniture, lighting etc which are suitable to your theme and all these are the minor details which will either compliment or bring down your theme. Stay true to your nordic, scandinavian design and I'm sure the end result will be a beautiful home. For TV, I go for Sony because I felt that the projected colors are more natural while Samsung colors are over saturated. For a 5 room living room, i think 55 inch will be ideal size.