Well, I have some suggestions for you.
First up, since we're talking about TV, I'm going to recommend another show to help pass the time.
That show is Vikings. currently, it has about two seasons under it's belt and is also on hiatus, making catching up on that quick and easy. The first season is readily available to buy on blu-ray...but sadly not Netflix (Canada) yet.
The show is 'doing' well, but was overshadowed by Game of Thrones, or perhaps lack of word of mouth.
There is also the mini-series, Pillars of the Earth, as well as its sequel (also a mini series) , World Without End.
Covering similar interests, yet for a younger audience, is How to Train Your Dragon 2. It is also being very well recieved, and I look forward to seeing it this weekend.
Now, onto another medium - books.
Yes, many of these may have appeared before. But how can I suggest passing the time for Game of Thrones without mentioning the books in which they're based? They are very good reads, and non-readers are missing tons. I myself am waiting for the next one, The Winds of Winter, so I have another wait ahead of me.
Ken Follett's Pillars of the Earth and (its sequel) World Without End cover some of the themes, although less fantastical and more political etc.
George R.R. Martin's friend, Daniel Abraham, also has a fantasy series which begins with The Dragon's Path. These are more closer to typical fantasy, and may be closer to Game of Thrones / A Song of Ice and Fire.
Going more with historic fiction, Bernard Cornwell's Warlord Chronicles are worth checking out. The first book is titled The Winter King. These are Cornwell's favourite books, actually.
Last but not least, is The Kingkiller Chronicle by Patrick Rothfuss. He's still working away at Book Three, but his series begins with The Name of the Wind. Like Martin, he is a master story teller and one of fantasy's greats.