Here’s a vital tip - I highly recommend that you avoid making your TV wide screen & entertainment centre the focal point or it will make your room look like a temple of worship to those items. Unless, of course, it’s a specific purpose built home theatre room.
Develop your style, your eye, your taste - If you don't think you’re clear just quite yet, or you feel you haven’t developed your own style, your eye, your taste, start going about learning & looking around you.
Home Improvement S03E14 Dream On.
Whether it’s your exquisite fine glassware or quirky pieces on dining room or kitchen shelving, or stacks of your books & souvenirs in the study or home office, show it off, arrange it with style. It will look great!