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The new series, "House of the Dragon", will be a huge hit for the cable network.

According to a report by Deadline, HBO is spending $100 million on a massive marketing push for a new show. Variety reported in April that each of the 10 episodes of "House of the Dragon" cost under 20 million dollars.

In a memo to staffers, Warner Bros. Discovery Chief Executive David Zaslav said the "unprecedented" cross-promotional marketing campaign had already reached 130 million Americans.

The new series tells the story of a civil war that destroyed the Targaryen dynasty. The cast includes Matt Smith, Emma D'Arcy, Paddy Considine, and Milly Alcock.

The show averaged 44 million viewers in its final season, making it the most popular show on TV at the time. No one is expecting those kinds of numbers for the movie.

"House of the Dragon" seems to be generating excitement among many of the same fans who were disappointed by the end of " Game of Throne" The reviewers have been mixed but generally positive. The series begins at 9 pm. You can watch it on the two channels, HBO and Max.

The stakes are high for HBO, which is planning a number of additional live-action and animated series in the coming years. The strategy will be tested by dragons.

But the big spending is also coming as the company looks to cut $3 billion in costs following the merger of AT&T’s T, WarnerMedia and Discovery Inc., which was completed in April.

A number of high-profile cancelations, from the nearly completed $90 million movie to CNN's weekly media show "Reliable Sources," have been made by the media giant. Last week, WBD announced it was cutting its workforce.

Warner Bros. Discovery added 1.7 million net streaming subscribers despite the fact that it missed revenue expectations.

The S&P 500 is down more than 10% this year, while Warner Bros. Discovery is down 42%.