National Amusements, Inc. is an American privately owned movie theater operator and mass media holding company incorporated in Maryland and based in Norwood, Massachusetts. It is the controlling shareholder of Paramount Global. History The company was founded by Michael Redstone in 1936 in the Boston suburb of Dedham as Northeast Theater Corporation, operating a chain of movie theaters in the region. In 1959, when the founder's son Sumner Redstone joined the company, it was renamed National Amusements. In 1986, the company acquired Viacom, a former CBS subsidiary syndicating television programs to stations around the United States. NA retained the Viacom name and made a string of large acquisitions in the early 1990s, announcing plans to merge with Paramount Communications (formerly Gulf+Western), parent of Paramount Pictures, in 1993, and buying the Blockbuster Video chain in 1994. The acquisition of Paramount Communications in July 1994 made Viacom one of the world's largest entertainment companies. In March 2005, the company announced plans of looking into splitting Viacom into two publicly traded companies under the continuing ownership of National Amusements because of a stagnating stock price. The internal rivalry between Les Moonves and Tom Freston, longtime heads of CBS and MTV Networks respectively, and the controversy of Super Bowl XXXVIII halftime show, which resulted in MTV being banned from producing any more Super Bowl halftime shows, were also seen as factors. After the departure of Mel Karmazin in 2004, Redstone, who served as chairman and chief executive officer, decided to split the offices of president and chief operating officer between Moonves and Freston. Redstone was set to retire in the near future, and a split would be a creative solution to the matter of replacing him. The split was approved by Viacom's board on June 14, 2005, and took effect on January 1, 2006, and effectively reversed the Viacom/CBS merger of 1999. The existing Viacom was renamed CBS Corporation (thus restoring its pre-merger name) and was headed by Moonves. It was intended to include Viacom's slower-growing business, namely CBS, The CW (a merger of UPN and The WB), CBS Radio (since sold to Entercom [renamed Audacy, Inc. in 2021] as of November 17, 2017), Simon & Schuster (to be sold to Penguin Random House), CBS Outdoor (formerly Viacom Outdoor, since spun-off as Outfront Media in 2014), Showtime Networks, CBS Television Studios, CBS Television Distribution and CBS Studios International. In addition, CBS Corporation was given