Stuart Fails to Save the Universe premieres on HBO Max July 23

HBO Max will launch the first "The Big Bang Theory" spinoff that continues after the original series finale. "Stuart Fails to Save the Universe" follows comic‑book store owner Stuart (Kevin Sussman) as he accidentally triggers a multiversal apocalypse and teams up with Denise (Lauren Lapkus), geologist Bert (Brian Posehn) and physicist Barry Kripke (John Ross Bowie) to repair reality. The show expands on the romantic dynamic between Stuart and Denise and adds a sci‑fi multiverse premise.

The series is scheduled to debut on Thursday, July 23, 2026, with new episodes airing weekly on HBO Max. Promotional material highlights the familiar humor and character interplay that made the original franchise a global phenomenon.