Please note that to use XBMC you need to have the drivers for your video card installed. You can install XBMC by adding the XBMC for Linux team PPA.
To add the PPA and install XBMC copy+paste the following lines in your terminal window:
sudo add-apt-repository ppa:team-xbmc/ppa -y
sudo apt-get update && sudo apt-get install xbmc -y
To start XBMC press the SuperKey and type: xbmc
XBMC is an award-winning free and open source (GPL) software media player and entertainment hub for digital media. While XBMC functions very well as a standard media player application for your computer, it has been designed to be the perfect companion for your Home Theater PC. Supporting an almost endless range of remote controls, and combined with its beautiful interface and powerful skinning engine, XBMC feels very natural to use from the couch and is the ideal solution for your home theater.
Currently XBMC can be used to play almost all popular audio and video formats around. It was designed for network playback, so you can stream your multimedia from anywhere in the house or directly from the internet using practically any protocol available. Use your media as-is: XBMC can play CDs and DVDs directly from the disk or image file, almost all popular archive formats from your hard drive, and even files inside ZIP and RAR archives. It will even scan all of your media and automatically create a personalized library complete with box covers, descriptions, and fanart. There are playlist and slideshow functions, a weather forecast feature and many audio visualizations. Once installed, your computer will become a fully functional multimedia jukebox.