For as much fervor as HBO's 'Game of Thrones' inspires from its legions of fans, every so often changes to the source material leave book fans feeling blue.  For one, 'Game of Thrones' fans have been dying to see Ser Brynden Tully the Blackfish realized on the series, cut from the first season, as well as his castle fortress Riverrun, excised from the second!  Season 3 of the George R.R. Martin-inspired TV series will finally give fans their wish, but how would you like a first look?

Thanks to HBO Watch, we've obtained our first look at what appears to be part of the "Riverrun" set from HBO's 'Game of Thrones' season 3.  The long-awaited castle, and its lord Ser Brynden Tully were excised for time in the first two seasons of the HBO hit fantasy drama, much to the chagrin of book fans.

In the original stories, "Brynden the Blackfish" is uncle to Catelyn Stark, and later a top advisor to her son King Robb Stark.  As announced at Comic-Con 2012, Ser Bryndon Tully will be played by storied UK actor Clive Russell.

The photos below aren't 100% confirmed to be legitimate, as HBO hasn't said anything either way, but considering the production detail and the fact that the carved fish appear to be flying the sigil and colors of House Tully, we'd be hard pressed to believe anything else.

What say you?  Are you excited to see the Blackfish and Riverrunn realized in all their glory?  What are you most excited for about 'Game of Thrones' season 3?  Check out the pictures below, and let us know what you think in the comments!