HDHomeRun is a TV tuner for computers - Ethernet attached. The HDHomeRun connects to your home router enabling you to watch and record TV from any computer on your home network. Similar to how a network printer is available to all computers, the HDHomeRun serves high quality digital TV to your family room, bedrooms, kitchen, home office, even your backyard or garage - anywhere you have a computer. No opening your computer case to install a PCI card. No USB dongle tied to one computer.