Not all exclusives are on discs. Some of the richest lore supplements exist in the digital marketplace, specifically in the world of e-books and digital downloads.
The Game of Thrones: The Complete Collection was released in various forms, featuring exclusive, all-new deleted/extended scenes, animated histories, and behind-the-scenes content. index of game of throne exclusive
Early season box sets often came with books detailing the making of the show. Not all exclusives are on discs
An in-depth look at how the production team filmed one of television's most complex battle scenes, involving hundreds of extras and real horses. all-new deleted/extended scenes