And Now, a Preview of the New HBO Fantasy Series Game of Thrones 907 Matt Toder 12/06/10 03:33PM Filed to: Game Of Thrones Game Of Thrones Sean Bean David Benioff George R.R. Martin TV Hbo Video Even thought it won't premiere until April, HBO ran an extended preview of their new fantasy series Game of Thrones last night. In this clip, actors and producers fill in some of the details of the backstory.[There was a video here]