The rest of J.K. Rowling’s brainchild will be released through HBO GO, HBO, NOW, HBO On Demand and allied channels. And with no commercials either. HBO already own the rights to stream the Harry Potter prequel film, Fantastic Beasts and Where to Find them . However, the network has never streamed all of them at the same time. Harry Potter and The Philosopher's Stone will surface on Irish shores at 14:00 on January 1st.