The first two seasons of HBO's Game of Thrones television series on DVD is available to rent at the Hawaii State Public Library System. Here's the direct links to request those series, along with the amount of requests and copies that's currently available:
Game of Thrones: The Complete First Season (34 copies available; 50 requests)
Game of Thrones: The Complete Second Season - (23 copies available; 186 requests)
Alternatively, you can purchase seasons one and two of Game of Thrones for a reasonable price via Amazon.com in the Blu-ray, DVD or streamable formats.