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 4)
Season 4 obtained the strongest viewer numbers of all seasons aired up until that point, with a series high of 7.20 million viewers of the first airing of the seventh episode. With its fourth season, "Game of Thrones" has become the most-watched HBO series in history (surpassing the fourth season of "The Sopranos" which had a gross audience of 18.2 million viewers), averaging 18.4 million viewers across multiple platforms, including live viewing, encores, DVR views, HBO GO and On Demand views.