Split of CBS Corporation and Viacom

On December 31, 2005, American mass media company Viacom split into two companies: the second CBS Corporation, its successor (the first being a short lived rename of Westinghouse Electric) which holds the namesake flagship channel Columbia Broadcasting System, CBS News, CBS Sports, Showtime Networks, UPN (Replaced by the CW, co-owned by TimeWarner), Smithsonian Channel, Channel 10, PopTV, Simon and Schuster, Infinity Broadcasting Corporation, Viacom Outdoor, Showtime Networks, and Paramount Television, and an entirely new Viacom which holds Paramount Pictures, Nickelodeon, Nick Jr., Noggin, Nicktoons, TEENick, Music Television, Black Entertainment Television, Video Hits One, Country Music Television, and later DreamWorks, respectively. It was first announced in March 2005. The companies are controlled under National Amusements' control because of a stagnating stock price.^[1]

They would later re-merge into ViacomCBS, later Paramount Global.