name few other channels under this network?
Turner Broadcasting and Cinemax.
WarnerMedia
The company has film, television and cable operations, with its assets including WarnerMedia Studios & Networks (consisting of the entertainment and family-friendly assets of Turner Broadcasting, HBO, and Cinemax as well as Warner Bros. 
game of thrones season 1 episode 1 ending explained UNANSWERABLE what is this series about? It is an adaptation of "A Song of Ice and Fire", George R. R. Martin's series of fantasy novels. who is the series writer? David Benioff and D. B. Weiss. which chanel did it air on? HBO from which country does this chanel originates? Lower Manhattan who is the owner of the channel? On August 7, 2020, WarnerMedia announced a major corporate reorganization in which Home Box Office, Inc. and other WarnerMedia Entertainment assets were consolidated with Warner Bros. Entertainment.
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WarnerMedia [SEP] Introduction
Justice Department filed in 2017 to attempt to block the acquisition. The merger closed two days later, with the company becoming a subsidiary of AT&T. Despite spinning off Time Inc. in 2014, the company retained the Time Warner name until AT&T's acquisition in 2018, after which it became WarnerMedia. The company's previous assets included Time Inc., TW Telecom, AOL, Time Warner Cable, Warner Books, and Warner Music Group; these operations were either sold to others or spun off as independent companies. The company was ranked No. 98 in the 2018 Fortune 500 list of the largest United States corporations by total revenue.