On June 14, 2018, Time Warner, including Turner Broadcasting System, was acquired by telecom firm AT&T and re-branded WarnerMedia.

[4][5] As of 2020, AT&T reported the financial results for WarnerMedia's ad-supported cable networks under the Turner business unit,[6] while also using the term "the TNets" to refer to the group of TBS, TNT, and TruTV in press releases.

[12] On December 17, 1976, at 1:00 pm, WTCG Channel 17's signal was beamed via satellite to its four cable systems in Grand Island, Nebraska; Newport News, Virginia; Troy, Alabama; and Newton, Kansas.

All four cable systems started receiving the 1948 Dana Andrews – Cesar Romero film Deep Waters already in progress.

HBO had gone to satellite transmissions to distribute its signal nationally in 1975, but that was a service that cable subscribers were made to pay extra to receive.

In 1979, the company changed its name to Turner Broadcasting System, Inc. (TBS, Inc.) and the call letters of its main entertainment channel to WTBS.

Burt Reinhardt, then executive vice president of CNN, hired most of the channel's first 200 employees and 25-member staff including Bernard Shaw, the network's first news anchor.

In 1981, Turner Broadcasting System acquired Brut Productions from Faberge Inc.[14] Also in 1981, WTBS began its usage of "Turner Time" in June 1981, in which programming began at five minutes after the top and bottom of each hour, instead of the broadcasting norm of beginning at the top and bottom of the hour.

In 1986, after a failed attempt to acquire CBS, Turner purchased the film studio MGM/UA Entertainment Co. from Kirk Kerkorian for $1.5 billion.

In 1987, top-rated television network NBC was considered bidding for a piece of the company in an effort to enter the cable business, but the deal was never materialized.

[18] Turner Broadcasting System expanded its presence in movie production and distribution, first with the 1991 purchase of the Hanna-Barbera and Ruby-Spears animation studios during a competitive bid with MCA/Universal, Hallmark Cards, and several other corporations.

[26] One of Kellner's most notable actions after succeeding Turner was his decision to cancel WCW's television programs.

[29] In May 2006, Time Warner, which had owned 50% of Court TV since 1998, purchased the remaining 50% from Liberty Media and began running the channel as part of Turner Broadcasting.

Also in May 2006, Ted Turner attended his last meeting as a board member of Time Warner and officially parted with the company.

[30] On October 5, 2007, Turner Broadcasting System completed the acquisition of Claxson Interactive Pay Television Networks in Latin America.

On August 26, 2010, Turner Broadcasting took full control of Chilevisión, a television channel owned by the President of Chile Sebastián Piñera.

On January 1, 2014, John K. Martin succeeded Phil Kent as chairman and CEO of Turner Broadcasting.

[34] In August 2014, The Wrap reported that Turner was preparing to offer buy-outs to 550 employees as part of plans to restructure the company heading into 2015.

[35][36] It was further reported in October 2014 that the company planned to reduce its workforce by 10% (1,475 people) through layoffs across a wide set of units including corporate positions.

[37] On August 14, 2015, it was announced that Turner Broadcasting had acquired a majority stake in iStreamPlanet, a Las Vegas-based video streaming services company, in an effort to bolster its over-the-top programming and shift its core technology infrastructure to the cloud.

[41] On March 22, 2018, Six Flags and Riverside Group announced a partnership with Turner Asia Pacific to bring attractions based on Tuzki and other Turner-owned IPs to its theme parks in China.

[42] On June 15, 2018, it was announced that John Martin would be leaving as CEO following AT&T's completed acquisition of Time Warner.

[44][failed verification] In December 2018, Turner Broadcasting sold the rights to the brand and its pre-2008 original programming library of defunct cable network Court TV (which relaunched as truTV in 2008) to Katz Broadcasting, with plans to re-launch it as an over-the-air digital network in May 2019.

WarnerMedia Entertainment would consist of HBO, TBS, TNT, TruTV, and an upcoming direct-to-consumer video service (led by former NBC entertainment chief Robert Greenblatt), while WarnerMedia News & Sports would consist of CNN, Turner Sports, and the AT&T SportsNet regional networks (which would be led by CNN Worldwide president Jeff Zucker).

However, the Turner logo was still used at its building in Atlanta, Georgia even after the company's dissolution in March 2019 until it was removed in October 2019.