HBO's highly anticipated "Game of Thrones" prequel broke records as the largest premier in HBO history, the company said Monday.
Why it matters: The prequel shows the power of extending popular franchises back in time for super-fans.
- It also proves HBO can still market hits under its new ownership.
Details: "House of the Dragon" drew nearly 10 million viewers across HBO's cable channel and HBO Max in its U.S. debut Sunday night, the largest audience for any new original series in the history of HBO, the company said.
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