Most people purchase a new HDTV, surround sound system, or projection system, set it up, but never go beyond the default settings. It's like buying a suit off the rack: sure, it may fit, but it could be MUCH better with a little tailoring specific to your fit. That's the gist of video and audio calibration, nip and tuck changes to the settings for optimal playback tailored to your room and equipment. And for a short time one of the biggest brands in theater technology (I bet you're imagining this sound now) is offering an app to walk you through the process using your iOS device and its built-in camera for the oh-so-nice price of "free". Watch the video below and improve your home system over this weekend!