https://techcrunch.com/2022/08/23/house-of-the-dragon-series-premiere-is-the-biggest-in-hbos-history-with-almost-10-million-viewers/

The premiere of the “Game of Thrones“ prequel “House of the Dragon” on Sunday made history for HBO and HBO Max and drew the largest audience for any new HBO original series, with 9.986 million viewers across linear and streaming in the U.S.

Warner Bros. Discovery announced the news on Monday, citing that the premiere also marked the largest series launch on HBO Max across the United States, Latin America, and the EMEA region (Europe, the Middle East, and Africa). In the U.K., the premiere pulled in 1.39 million viewers for Sky, a record for the Comcast-owned satellite TV operator, according to The Hollywood Report.