Showtime is an American premium cable and satellite television network that serves as the flagship service of the Showtime Networks subsidiary of CBS Corporation, which also owns sister services The Movie Channel and Flix. Showtime's programming primarily includes theatrically released motion pictures and original television series, along with boxing and mixed martial arts matches, occasional stand-up comedy specials and made-for-TV movies. The Showtime brand is used by a number of channels and platforms around the world, but primarily refers to the group of eight multiplex channels in the United States. Showtime is available to 29.7 million households in the U.S. The channel and its corresponding networks are headquartered at Paramount Plaza on the northern end of New York City's Broadway district.