Terratec Cinergy Piranha is a TV tuner that allows you to watch digital TV on your computer. It is compatible with both Windows XP SP2 and Windows Vista. The device comes with a CD-ROM that includes drivers, a manual, a service request form, and registration documents. To install the drivers, simply insert the CD-ROM into your computer's CD/DVD drive and follow the on-screen instructions. Once the drivers are installed, you can launch TerraTec Home Cinema (THC) by double-clicking its icon on the desktop. From there, you can scan for channels and save them to your computer.