As part of the 25th anniversary of "Harry Potter and the Sorcerer's Stone," Warner Bros. Discovery is launching a global celebration of Butterbeer Season 2026, featuring new treats, returning fan favorites, exclusive merchandise, and immersive experiences. The event is not just a reality show, but also a retail experience. The retail rollout is one of the largest yet, with retailers including grocery stores, big box stores, candy shops, and national restaurant chains participating.