Well that didn’t take long — one look at the monster numbers of the Season 4 premiere, and HBO has renewed smash hit “Game of Thrones” for a fifth and sixth season.

“‘Game of Thrones’ is a phenomenon like no other,” network president Michael Lombardo said in the announcement Tuesday afternoon. “[Creators] David Benioff and D.B. Weiss, along with their talented collaborators, continue to surpass themselves, and we look forward to more of their dazzling storytelling.”

While it was inevitable that “Game of Thrones” would live on for (what HBO hopes is) many years, double season renewal is the ultimate sign of faith in a show. It’s also a sigh of relief for showrunners who can plan ahead many episodes in advance without worrying about filming schedules.

The fantasy epic continued its hot streak on Sunday’s debut, attracting 6.6 million people — the biggest number for an HBO series since “The Sopranos” signed off with about 12 million viewers in 2007. The Season 4 premiere was also the third most-tweeted-about show of the week, according to Nielsen.