Coaxial cable is the name of the thick (usually black) cable that carries the programming signal into your television. This cable is usually identifiable by the screw-on or push-on plugs at each end. A coaxial splitter is a small unit, usually only a few inches in lench, that simply splits one signal into two. You can use a coaxial splitter to hook up two or more TV sets to a single DIRECTV Receiver. Please visit the AMERIDISH page on Multi-Room Solutions for more information on this topic.