As promised, Sling TV is adding HBO to its lineup in time for the season premiere of Game of Thrones and other shows like Silicon Valley and Veep. The streaming service will let its subscribers get in on the premium network starting before Saturday, but it won't come cheap. HBO is set to cost $15 per month, on top of the $20 people are already paying for Sling TV's basic channel package. Still, this has been the cord-cutter's dream for some time, so we don't expect to see too many complaints about it -- plus, it's not as if anyone expected HBO to be a part of the Sling TV starter pack, to begin with. That said, a Sling TV spokesperson did confirm to Engadget that customers won't get a login for HBO's on-demand service, HBO Go, because they won't have a need for one.