Update:

Comcast responded to IGN, providing background on its other supported devices.

"Xfinity customers who subscribe to HBO currently have access to the full HBO library via their set to box, or via Xfinity TV Go platforms across devices," a Comcast spokesperson said. "We also currently authenticate more than 90 networks across 18 devices (and we began authenticating HBO and Showtime on Roku last December) so there is no shortage in the number of ways for our customers to access their content across the devices and platforms of their choice."

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The HBO Go app released on PlayStation 4 recently, but Comcast customers are unable to activate it on Sony's console.HBO Go originally released for PS3 last year , and the same problem occurred under Comcast. Users took to forums asking the broadband provider if the ommission was for technical reasons, and Comcast cited business technicalities for the app's absence. The provider didn't mention PS4 specifically in the post, but did include "other devices" in its response."HBO Go availability on PS3 (and some other devices) are business decisions and deal with business terms that have not yet been agreed to between the parties," Comcast wrote on the forum thread . "Thanks for your continued patience."PlayStation owners under AT&T, Verizon and Time Warner Cable have not, on the other hand, experienced the same difficulties. In other recent news, the standalone HBO service finally has a name: HBO Now. According to the report, HBO is in talks with Apple to make AppleTV one of the service's launch partners , when HBO Now will reportedly launch in tandem with the Game of Thrones season 5 premiere.IGN has reached out to Comcast for comment.

Mike Mahardy is a freelance journalist writing for IGN. You can follow him on Twitter at @mmahardy