Game of Thrones (season 3)
"Game of Thrones" rapidly became a critical and commercial success after it started airing in April 2011. A few days after ratings for the second season's premiere, "The North Remembers", hit a series high of 8.3 million viewers, HBO announced the show's renewal for a third season. Prior to that announcement, there had been rumors and reports that showrunners David Benioff and D. B. Weiss planned to shoot seasons three and four simultaneously. Benioff said that this would be very efficient, but impossible to write.
Game of Thrones (season 1)
The first episode attracted 2.2 million viewers its initial airing on April 17 in the U.S., and totaled 5.4 million viewers across multiple Sunday and Monday night airings. It averaged 743,000 and reached a peak 823,000 in UK and Ireland on its April 18 premiere. HBO announced that they would be commissioning a second season on the strength of the reception of the premiere episode. By the final episode of the season, which aired June 20, the ratings had climbed to over 3 million.