The Advanced Television Systems Committee, Inc., is an international, non-profit organization developing voluntary standards for digital television. The ATSC member organizations represent the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. ATSC creates and fosters implementation of voluntary Standards and Recommended Practices to advance terrestrial digital television broadcasting, and to facilitate interoperability with other media.

ATSC was formed in 1983 by the member organizations of the Joint Committee on InterSociety Coordination (JCIC): the Electronic Industries Association (EIA), the Institute of Electrical and Electronic Engineers (IEEE), the National Association of Broadcasters (NAB), the National Cable Television Association (NCTA), and the Society of Motion Picture and Television Engineers (SMPTE). Currently, there are approximately 185 members representing the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. ATSC incorporated on January 3, 2002. On December 24, 1996, the United States Federal Communications Commission (FCC) adopted the major elements of the ATSC Digital Television (DTV) Standard (A/53). The ATSC DTV Standard has been adopted by the governments of Canada (November 8, 1997), South Korea (November 21,1997), Argentina (October 22, 1998), Mexico (July 2, 2004), and Honduras (January 16, 2007). A detailed history of the development of the ATSC Digital Television Standard explains the process of the FCC Advisory Committee on Advanced Television Service (ACATS) and the role of the ATSC.

ATSC Digital TV Standards include digital high definition television (HDTV), standard definition television (SDTV), data broadcasting, multichannel surround-sound audio, and interactive television.