Young Sheldon: Every Big Bang Theory Cameo, Easter Egg and Future Reveal


Young Sheldon is now streaming alongside The Big Bang Theory on HBO Max, so what better time to take stock of the prequel series’ many nods, cameos and crossovers with the mothership?

First launched in September 2017, Young Sheldon fills in the details of Dr. Cooper’s upbringing in East Texas. The story starts off in 1989, and is told from the point of view of a more mature Sheldon, “who is older now [and] seeing his parents in a different light for the first time.” This altered perspective has allowed the spinoff to chart its own path and occasionally diverge from Big Bang canon without ever disrespecting what preceded it.

Whether you’re familiar with the prequel or simply curious, the following guide provides a rundown of all the ways the single-camera offshoot has paid homage to Big Bang, provided answers to some of our lingering questions (for starters, what’s a Bazinga?!), and painted a clearer picture of Sheldon’s relationship with his family, including his ill-fated dad. Also featured are multiple Easter eggs, crossovers that took place after the mothership ended, and details about Sheldon and Amy’s future that were never disclosed on BBT. We’ve also included season and episode numbers for those who want to watch (or rewatch) select half-hours.

TVLine will continue to update this guide as Young Sheldon continues its run on CBS. In the meantime, scroll through the following list to see if you’ve caught every tip of the hat to The Big Bang Theory, then drop a comment below.