I think the problem in some of the designs I'm about to show you, lie in that the designer failed to view the proximity and function of certain items (like a mounted flat screen TV) that doesn't serve a comfortable viewing experience for the client. I want to point out that I haven't had any formal interior design training. I have worked alongside designers; and have picked up a thing or two. I'm not claiming to be an authority in the field; but even I can tell you that you will have an aching neck if your flat screen is mounted up high, and you're only seating area is two feet away from it.
1. As you can see from this first example, there's a terrible miscalculation of how high the TV should be, in regards to the proximity of the seating areas, such as the couch. Unless there's only 1 person who lives in this home, and always pulls one of the striped chairs further out, the television viewing experience will be an annoyance at best.