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
The pilot reportedly cost HBO $5–10 million to produce, while the first season's budget was estimated at $50–60 million. In the second season, the series received a 15-percent budget increase for the climactic battle in "Blackwater" (which had an $8 million budget). Between 2012 and 2015, the average budget per episode increased from $6 million to "at least" $8 million. The sixth-season budget was over $10 million per episode, for a season total of over $100 million and a series record.