XBMC is an open-source media center that is installed on the Android TV Box. This open-source media center has 1000′s of repositories and sources for the end user (you) to find exactly what you are looking for with the quality that you demand. Some boxes may be pre-programmed with add-ons but you can add as many as you want. We do not guarantee any of add-ons installed on the XBMC will play every time in HD quality nor do we guarantee these add-ons will not buffer or go down from time to time. Remember, these add-ons are managed and run by a third-party and should not be a direct reflection of how the box runs or operates as these add-ons sometimes have issues with connectivity, speed, buffering and quality. One should do research on XBMC before purchasing and understand that not every add-on will work perfectly every time.