All hail HBO’s Game of Thrones. The fourth-season premiere of the fantasy delivered the show’s biggest audience yet: 6.6 million viewers. That makes Sunday’s Thrones HBO’s most-watched program since The Sopranos’ series finale in 2007. Two replays of the Thrones episode drove the show’s full-night tally up to 8.2 million viewers.

By comparison, season 3 opened to 4.4 million viewers and eventually peaked at 5.5 million for the sixth episode (no, the Red Wedding was not a record high, and nor was the finale, which delivered 5.4 million).

Last season Thrones averaged 14.4 million viewers per episode, second only to The Sopranos as HBO’s most-watched series. This year, Thrones might very well overtake the classic mob drama to claim the premium cable network’s all-time crown, especially given its history of growing its audience as a season progresses.  

Online viewership was also immense as HBO Go, the pay cabler’s streaming service, crashed during the premiere with many receiving a “fatal error” message, which HBO attributed to “overwhelming demand.”