
Primary Editor, All Movie Guide. Author of Television Cartoon Shows: An Illustrated Encyclopedia, 1949 through 2003 and From Beautiful Downtown Burbank: A Critical History of Rowan and Martin's Laugh-in, 1968-1973.
Tracy Grant is a senior editor at Encyclopaedia Britannica. She previously served as editor in chief, the first woman to hold that title.
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

Before 1980, Americans got their news from one of three broadcast networks, their local newspaper, or neighborhood gossip. There were no smartphones, the Internet was not publicly available, and until June 1, 1980, cable news did not exist. That all changed when broadcasting maverick Ted Turner rolled out a project four years in the works that he called Cable News Network, or CNN for short. The first 24-hour news network would revolutionize the media landscape and dominate coverage of some of the late 20th centuryâs biggest stories, thereby changing how global events were presented and spurring copycats and spin-offs. By the late 2020s, the property that had created upheaval in television found itself challenged by the industry fragmentation it had helped spawn as well as by uncertainty over its management and ownership.
Turnerâs entrepreneurial conceit was that emerging low-cost satellite technology could, in essence, turn a local television station into a rival of the national networksâthen ABC, CBS, and NBCâat a fraction of the cost. The networks, for their part, scoffed at the endeavor, questioning what the business model was for round-the-clock news coverage. Dubbed the âChicken Noodle Networkâ by its detractors, CNN adopted the mantra âGo live, stay with it, and make it important.â Despite having to navigate the early days of technical glitches, less-than-state-of-the-art studios, and a tiny number of cable subscribers (fewer than 2 million), CNN seemed to have appeared on the scene at just the right moment. Three years later, as cable became more commonplace in American homes, more than 30 million viewers had access to CNN.

On the morning of January 28, 1986, the networkâs commitment to continuous coverage of live eventsâeven seemingly routine onesâproved prescient. Only CNN carried the Challenger launch live, so when the shuttle broke apart 73 seconds into its flight, killing the seven astronauts on board, viewers around the world turned to the network for its coverage of the unfolding tragedy. CNN thus demonstrated the unique value of a 24-hour news outlet during a breaking national emergency.
Five years later CNN again trumped the other networks with its live coverage of the Persian Gulf War. When the United States and its coalition partners launched Operation Desert Storm, most Western journalists fled Baghdad or were ordered out by their employers because of severe safety concerns. CNN issued no such mandate to its correspondents, and the result was that those who stayed behind, including Bernard Shaw, Peter Arnett, and John Holliman, brought the uncertainty and urgency of the conflict to the airwaves in real time. One of Shawâs memorable reports from the earliest days of the war went like this:
Something is happening outside. The skies over Baghdad have been illuminated. Weâre seeing bright flashes going off all over the sky.
The reporting from the Al-Rashid Hotel in Baghdad was not really television: Because of cut communications lines, correspondents basically were talking to anchors and viewers over telephone lines. Shaw would describe it later, saying, âIn effect, we were doing radio on television.â
The result was not only the creation of compelling television but also a fundamental change in global diplomacy. For the first time a war was being broadcast live, and the impact spawned the CNN effect. This new concept played out over the next decades, as CNN and other outlets brought coverage of global crises to the public and to policymakers, thereby affecting governmental responses. When she was U.S. ambassador to the United Nations, Madeleine Albright nodded to the CNN effect, saying that the network was âthe 16th member of the Security Council.â In the waning years of the 20th century, the 24-hour news cycle was affecting public policy.
As CNN expanded its worldwide coverage, its correspondents, anchors, and interviewers became globally recognized figures.
Among the most influential was Christiane Amanpour, whose reporting redefined television war coverage in the post-Cold War era. Amanpour joined CNN in 1983 as an entry-level desk assistant before rising to prominent international assignments covering the fall of European communism, the Gulf War, and the Kurdish refugee crisis. Her at times controversial reporting from the front lines of the Bosnian War brought the horrors of ethnic cleansing into the living rooms of international policymakers as well as ordinary viewers.
CNN nurtured a prominent stable of journalists and commentators that included Washington correspondent Wolf Blitzer, veteran investigative correspondent Daniel Schorr, Catherine Crier, Mary Alice Williams, and Paula Zahn. Later generations brought anchors including Anderson Cooper, Don Lemon, and Kaitlan Collins to prominence. In 1990, to mark the networkâs 10th anniversary, actor James Earl Jones intoned three words that became synonymous with the network: âThis is CNN.â
Beyond breaking news, CNN constructed an influential evening lineup that combined political debate, financial reporting, and long-form interviews. Business journalism was brought to prime-time television through Moneyline (1980â2001; later retitled Lou Dobbs Moneyline [2001â03] and Lou Dobbs Tonight [2003â09]), which made financial markets accessible to general retail investors. Partisan debate and ideological combat were institutionalized through Crossfire (1982â2005, 2013â14), which paired combative left- and right-wing pundits, anticipating the polarized format that would later come to dominate modern cable news programming.
The centerpiece of CNNâs evening schedule for a quarter century was Larry King Live (1985â2010), hosted by former Brooklyn disc jockey and radio talk host Larry King. Kingâs conversational, nonadversarial interview demeanor encouraged candor from guests, making his program a cultural crossroads where world leaders, cultural icons, Hollywood celebrities, and figures caught in sensational legal scandals congregated. For a number of years it was the most-watched talk show on cable. The show launched itself into the political sphere when billionaire Ross Perot used a February 1992 appearance on Kingâs program to declare his independent candidacy for the U.S. presidency, illustrating how cable talk television could challenge the traditional presidential primary infrastructure.
In the 21st century CNN adjusted its evening programming to contend with the partisan commentary cable networks MSNBC (now MS NOW) and Fox News, which were direct outgrowths of the revolution CNN started. Core programming evolved around Anderson Cooper 360° (2003â ) and Wolf Blitzerâs political newsroom program The Situation Room (2005â ). Under the leadership of network president Jeff Zucker in 2013, CNN diversified its portfolio by investing heavily in nonfiction original series and documentaries. The most celebrated of these was Anthony Bourdain: Parts Unknown (2013â18). Hosted by the titular chef and author, the show examined foreign culture, geopolitics, and global cuisine, securing 12 Emmy Awards and critical prestige for the network.

In 2024 CNN aired one of the most consequential presidential debates in U.S. history. The stumbling performance on the debate stage by Pres. Joe Biden against former president Donald Trump led Biden to withdraw from the race weeks later. The second Trump administration saw CNN at odds with the president. White House correspondent Collins, in particular, was a regular subject of the presidentâs ire, as she had been during his first term, when she was briefly banned from a White House event after asking a tough question. In September 2026 the president banned CNN, MS NOW, and Politico from the White House, a move that sparked court action and outcry from press freedom activists.

The seemingly doomed upstart that Turner had launched in 1980 was sold to Time Warner Inc. in 1996 for $7.5 billion, making CNN part of the massive entertainment conglomerate. More corporate changes came in 2001 with the high-profile and turbulent merger of AOL and Time Warner. Telecom giant AT&T purchased Time Warner and renamed it WarnerMedia in 2018. In 2022 AT&T spun off WarnerMedia to merge it with Discovery Inc., forming Warner Bros. Discovery.
The most historic ownership shift occurred on October 6, 2026, when Paramount Skydance acquired Warner Bros. Discovery in a deal valued at $81 billion. The merger united two legendary film studios and extensive broadcast networks under Skydance Corporation, led by chairman and CEO David Ellison and co-CEO Ynon Kreiz. For broadcast journalism the deal unprecedentedly brought CNN and CBS News under shared corporate ownership. This union provoked scrutiny from regulators and unions, who expressed concerns about editorial independence and potential job eliminations, particularly in the wake of Ellison naming the controversial Bari Weiss to run CBS News.
Skydance took actions to address antitrust concerns, including establishing a board of journalists designed to protect the independence of the two news operations. Ellison also announced that Mark Thompson would remain as chairman and editor in chief of CNN Worldwideâa move meant to quell unease within the CNN newsroom, even as it struggled to revamp its operations with a more digital focus. Under Thompson, who took on his role in 2023, CNN embarked on newsroom reorganization, investment into streaming initiatives, and an increased focus on digital offerings.