The season finale of 'Game of Thrones' delivered 7.1 million viewers, up 32% from the Season 3 finale. With an additional two plays this Sunday, the night’s gross audience was 9.3 million viewers. The 9:00PM airings this season averaged 6.8 million viewers, up 37% from last season. This season of 'Game of Thrones' has also recorded the largest audience ever for an HBO series with an average gross audience of 18.6 million viewers, up 29% from last season. 'Game of Thrones' passed the high watermark set by 'The Sopranos' in 2002. The most-watched season of the mob drama maxed out at 18.2 million viewers.