In the final moments of Young Sheldon, there's a blink-and-you'll-miss-it cameo that even die-hard Big Bang Theory fans may not have recognized—David Saltzberg, the show's long-time science consultant, makes a brief appearance as a professor at Caltech. This subtle nod honors Saltzberg's 16-year contribution to both shows, highlighting his essential role in making the portrayal of science so accurate. Let’s watch the video to uncover this hidden gem!