Mounting your tv to the wall and hiding all the cords. Edited 1/27/2013 to add: Dropping a TV power cord through your wall isn’t “to code”.
To do this project to code you will need a Power Bridge Total Solution Flat Panel In-Wall Power and Cable Management Kit. They are around $50 at Amazon and are very easy to install. Order one here. Play:5 Wireless HiFi Player. Amplifier Six Class-D digital amplifiers perfectly tuned to match the speakers and acoustic architecture.
Tweeters Three tweeters create a crisp and accurate high-frequency response. Mid-woofers. DIY Show Off - Our Farmhouse Home TourDIY Show Off ™