CBS Corp. operates as a mass media company, which creates and distributes content across a variety of platforms to audiences around the world. The company operates its business through following segments: Entertainment, Cable Networks, Publishing and Local Broadcasting. The Entertainment segment is composed of the CBS Television Network, CBS Television Studios, CBS Global Distribution Group, CBS Films and CBS Interactive. The Cable Networks segment is composed of Showtime Networks, CBS Sports Network and Smithsonian Channel. The Publishing segment is composed of Simon & Schuster, which publishes and distributes consumer books under imprints such as Simon & Schuster, Pocket Books, Scribner, Gallery Books, Touchstone and Atria Books. The Local Broadcasting segment is composed of CBS Television Stations and CBS Radio. CBS was founded by Sumner Murray Redstone in 1986 and is headquartered in New York, NY.