Warning: This story contains spoilers for the final episode of "Game of Thrones."

More than 19 million U.S. viewers watched the series finale of television's "Game of Thrones" — a record audience for HBO, the cable channel said on Monday.

HBO, a unit of AT&T's Warner Media, said Sunday's 19.3 million live television audience and viewers on its HBO GO and HBO NOW apps exceeded the previous high for the fantasy — 18.4 million, for the penultimate episode a week ago.