MTV (originally an initialism of Music Television) is an American cable channel that launched on August 1, 1981. Based in New York City, it serves as the flagship property of the ViacomCBS Domestic Media Networks division of ViacomCBS. Prior to launch, the network was first tested on December 1, 1977, as Sight on Sound.
The channel originally aired music videos and related programming as guided by television personalities known as “video jockeys”. (VJs), In the years since its inception, the channel significantly toned down its focus on music in favor of original reality programming targeting teenagers and young adults.
MTV has spawned numerous sister channels in the U.S. and affiliated channels internationally, some of which have gone independent, with approximately 90.6 million American households in the United States receiving the channel as of January 2016.