I've already thrown away the cable box. How about this for guitar practice? Features: Rocksmith is the fastest way to learn guitar in the US. Over 95% of players in the US reported improved guitar skills. With a completely redesigned interface and all-new features, it's been adjusted to better teach the essential elements of guitar playing. You can learn faster and have more fun than with any other method. I've confirmed it's working, but it's a used item, so please understand that it's sold as-is (no returns or exchanges).