Wikimedia Commons/Harry Potter HBO series TV Go behind the magic of HBO's new Harry Potter series. Watch the exclusive 'Finding Harry' special April 5th on HBO & Max. April 5, 2026 AceShowbiz - For fans eagerly awaiting the premiere of Harry Potter on HBO, relief is on the horizon with an upcoming behind-the-scenes special titled Finding Harry: The Craft Behind the Magic. This special offers an exclusive look into the creation of the show's inaugural season, Harry Potter and the Philosopher's Stone, which is scheduled to debut this Christmas on HBO and HBO Max.