Cable television 有线电视
（重定向自Community Antenna Television）
![Coaxial cable used to carry cable television into subscribers' residences.](/Images/godic/202501/05/F-Stecker_und_Kabel2803.jpg")
![A cable television distribution box (left) in the basement of a building in Germany, with a splitter (right) which supplies the signal to separate cables which go to different rooms](/Images/godic/202501/05/HÜP_von_KBW2803.JPG")
![Diagram of a modern hybrid fiber-coaxial cable television system. At the regional headend, the TV channels are sent multiplexed on a light beam which travels through optical fiber trunklines, which fan out from distribution hubs to optical nodes in local communities. Here the light signal from the fiber is translated to a radio frequency electrical signal, which is distributed through coaxial cable to individual subscriber homes.](/Images/godic/202501/05/HFC_Network_Diagram.svg2803.png")
![同轴电缆](/Images/godic/202501/05/RG-592803.jpg")
Cable television is a system of delivering television programming to paying subscribers via radio frequency (RF) signals transmitted through coaxial cables or light pulses through fiber-optic cables. This contrasts with broadcast television, in which the television signal is transmitted over the air by radio waves and received by a television antenna attached to the television. FM radio programming, high-speed Internet, telephone service, and similar non-television services may also be provided through these cables.