TV (formerly an initialism of Music Television) is an American basic cable and satellite television channel which is a part of the "Viacom Music and Entertainment Group" unit of the Viacom Media Networks division of Viacom, which it is a subsidiary of. The channel itself is headquartered in New York City, and is a subsidiary of Viacom Inc. Launched on August 1, 1981,[2] the original purpose of the channel was to play music videos guided by television personalities known as "video jockeys," or VJs.[3] The network's current target audience is teenagers and young adults, with programming consisting mainly of original reality, comedy and drama programming and some off-network syndicated programs and films, along with limited music video programming in off-peak time periods. In its early years, MTV's main target demographic were young adults, but today, MTV's programming is primarily targeted at teenagers, high school students and college-aged students.