In 2014, Amazon Prime acquired exclusive streaming rights to certain HBO ******, but **thing too recent or major (so Game of Thrones wasn't on there anyway). That was before HBO **w, and before Prime subscriptions also offered a Showtime add-on.
So as of May 2018, HBO itself will be the only place to watch the cable providers' popular original ******, as well as HBO Go and HBO **w, if you haven't already borrowed those logins from your friends.* Read more...