Comicbook.com reports HBO's 'Game of Thrones' took a slight ratings hit two weeks into its final season. A new report says Sunday's episode, titled "A Knight of the Seven Kingdoms"had approximately 15.9 million viewers between streaming and replays, which is around a 9 percent decrease from the premiere's 17.4 million viewers. Nielsen released initial ratings for the episode, which showed that the second episode had 10.29 million viewers through traditional television means.