It connects to the TV through either the composite video or S-Video port, and to the PC through the Universal Serial Bus port common on most newer machines.
Early last week a security researcher who goes by the name someLuser published a blog post detailing his dissection of a DVR built by the security firm Swann, disassembling the device and running tests on it via its serialport.
An Epson ink-jet printer's connector fit, but 3Com's marketers don't mention that Bluetooth behaves like a serialport rather than a parallel one, making installation difficult and keeping many printers from reporting things like the status of ink cartridges or paper jams.