So you’re on a high from last night’s Oscars and finally ready to set up a proper home theater, huh movie buff? Well, you’ll need more than a projector and comfy chairs. It’s a common misconception: You can’t just aim your projector at a bare white wall and drool over your $1,800 projector’s stellar picture. To get the best viewing experience in your home theater, follow these tips for painting a projection wall. Paint it proper.