April 2, 2013
HBO announced today that Game of Thrones has been renewed for a fourth season. The pick-up comes just days after the medieval drama's season 3 premiere, which hit a series high in viewership with an average 4.4 million viewers for its 9:00pm airing.
There is no word on the number of episodes planned for Season 4 of Game of Thrones but an order of 10 is likely, which would be in line with the show's first three seasons.
UPDATE: Season 4 of Game of Thrones premieres on Sunday, April 6, 2014 at 9:00pm.
(Source: TV by the Numbers)