The Big Bang Theory fans are going to geek out over Stuart Fails to Save the Universe. The remainder of the world will be a little confused by the teaser trailer and concept of HBO Max’s new TBBT spin-off. Stuart Fails to Save the Universe, the third spin-off from the award-winning comedy, will premiere on July 23, 2026.
New episodes of the 10-episode season stream on Thursdays at 9pm ET/PT.
The new series stars Kevin Sussman as Stuart, Lauren Lapkus as Denise, Brian Posehn as Bert, and John Ross Bowie as Barry.
HBO Max’s synopsis reads, “Comic book store owner Stuart Bloom is tasked with restoring reality after he breaks a device built by Sheldon and Leonard, accidentally bringing about a multiverse Armageddon. Stuart is aided in this quest by his girlfriend Denise, geologist friend Bert, and quantum physicist/all-around pain in the ass Barry Kripke. Along the way, they meet alternate-universe versions of characters we’ve come to know and love from The Big Bang Theory. As the title implies, things don’t go well.”
Chuck Lorre, Zak Penn, and Bill Prady created the series and serve as writers and executive producers.