2019 merger of CBS and Viacom

Paramount Global, also known by its trade name as simply Paramount and formerly ViacomCBS, was an American multinational mass media and entertainment conglomerate controlled by National Amusements and headquartered at One Astor Plaza in Times Square, Midtown Manhattan that was in operation from December 4, 2019 to August 7, 2025.

Established through the merger of the second incarnations of Viacom and CBS Corporation, which were split from the original Viacom on December 31, 2005, it took its latest name on February 16, 2022. Paramount's main properties include the namesake Paramount Pictures Corporation, the CBS Entertainment Group (consisting of the CBS television network and television stations as well as The CW and other CBS-branded assets), the BET Media Group (which oversees BET and its sister channels), Paramount Media Networks (consisting of locally-based cable television networks including MTV, Nickelodeon, Comedy Central, CMT, Paramount Network and Showtime) and Paramount Streaming (including Paramount+ and Pluto TV). It also has an international division that manages international versions of its cable networks, as well as region-specific assets including Argentina's Telefe, Chile's Chilevisión, the United Kingdom's 5 and Australia's Network 10. From 2011 to 2023, the division also owned a 30% stake in Rainbow S.p.A. of Italy. As of 2019, the company operates over 170 networks and reaches approximately 700 million subscribers in 180 countries.

Sumner Murray Redstone (né Rothstein; May 27, 1923 – August 11, 2020) was an American billionaire businessman and media magnate. He was the founder and chairman of the second incarnation of Viacom, chairman of CBS Corporation (both companies merged in 2019, a year before Redstone's death), and the majority owner and chairman of the National Amusements theater chain.

Until his death, Redstone was a majority voting shareholder of the media conglomerate ViacomCBS, the parent company of the Paramount Pictures film studio, the CBS television network, and various cable networks.

Paramount+ is an American subscription video on-demand over-the-top streaming service owned by Paramount Skydance. The service's content is drawn primarily from the libraries of CBS, Nickelodeon, MTV, Comedy Central, BET, the Smithsonian Channel, Showtime, and Paramount Pictures. It also shows original series and films, live streaming sports coverage, and in the United States, live streaming of local CBS television stations. The service was launched on October 28, 2014 by CBS Corporation as CBS All Access in the United States, initially focusing on the live streaming of CBS programming from its local affiliates, as well as on-demand access to CBS programs and library content. The service began to expand into original programming in 2016, beginning with spin-offs of CBS programs such as Big Brother, The Good Fight, and the new Star Trek television series Star Trek: Discovery. In 2018, the service launched in Australia as 10 All Access, taking its name from CBS-owned Network 10, and was a mixture between CBS and 10's programming. Paramount+ is one of the top ten most-subscribed video on demand streaming media service globally, with 79 million paid memberships.

Following CBS’ 2019 reunion with Viacom, content from Comedy Central, MTV, Nickelodeon, and other Viacom brands was subsequently included, and in 2021, the service wasrebranded as Paramount+ on March 4, taking its name from Paramount Pictures and becoming a companion to other Paramount brands. The service expanded into Australia, Latin America, and Europe. Paramount+ is a sister service to CBS News 24/7 and CBS Sports HQ, which are streaming services for CBS' news and sports divisions, BET+, which is operated by BET and the Tyler Perry Studios, and free ad-supported streaming television service Pluto TV, which was acquired by Viacom nine months before completing its merger with CBS.