HBO Max unveiled the first teaser trailer for the “Big Bang Theory” spinoff “ Stuart Fails to Save the Universe .” The teaser was released during the Warner Bros. Discovery upfront presentation to advertisers in New York on Monday. Series stars Kevin Sussman, Lauren Lapkus, Brian Posehn, and John Ross Bowie all took the stage to reveal the video and to announce that the 10 episode show will premiere on July 23 at 9 p.m. ET on HBO Max. New episodes will then drop weekly. Check out the full teaser below. Popular on Variety The show was originally announced as being  in development back in April 2023 . The logline states: “Comic book store owner Stuart Bloom (Sussman) 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 (Lapkus), geologist friend Bert (Posehn), and quantum physicist/all-around pain in the ass Barry Kripke (Bowie).…