“The Lord of the Rings: The Rings of Power” is that show. “House of the Dragon,” however, is the opening salvo in a lengthy, multifaceted rollout of “Game of Thrones” spinoffs and sequels.

‘House of the Dragon’ Showrunners on Taking Over From David Benioff and D.B. Weiss, ‘Lord of the Rings’ Comparisons. Ryan Condal and Miguel Sapochnik talk conversations with the 'Game of ...