Here’s a complete review of Young Sheldon Season 3, Episode 2, titled (production code H255, referring to the episode’s identifier in the Warner Bros. system).
The script balances typical Young Sheldon warmth with sharper satire of academic elitism. The B-plot about the dryer is simple but effective, giving Lance Barber (George Sr.) physical comedy to work with. Best joke: Sheldon naming his pet rock “Sir Isaac Neutron” to feel superior—only for Paige to politely point out that “Neutron” was discovered centuries after Newton.
7.5/10
"A Baby Tooth and the Egyptian God of Knowledge" Aired: October 3, 2019 young sheldon s03e02 h255
While Sheldon’s plot provides the comedy, the B-plot involving George Sr. provides the dramatic weight. Recovering from his heart attack, George is struggling with the "Baby Tooth" metaphor from the title—specifically, the idea of holding onto things that need to let go.
In a bid to "upgrade" his mind to compensate for his body's perceived deterioration, Sheldon becomes obsessed with Thoth, the Egyptian God of Knowledge. What follows is a delightful sequence of visual comedy—Sheldon wandering the halls of East Texas Tech dressed in a pharaonic headdress and eyeliner, attempting to channel ancient wisdom. It is a quintessential Young Sheldon storyline, highlighting Iain Armitage’s ability to balance childish stubbornness with intellectual arrogance.
The narrative split in this episode provides a balance between Sheldon's relentless pursuit of knowledge and the more grounded, moral dilemmas faced by Mary and Pastor Jeff. Sheldon’s Self-Guided Education Here’s a complete review of Young Sheldon Season
George is technically on medical leave, yet he keeps showing up at the school football field. He can’t let go of his identity as a coach. This plotline is crucial for long-time fans of the franchise. Viewers familiar with The Big Bang Theory know that George Sr.’s infidelity and the breakdown of his marriage are looming on the horizon.
The episode was directed by and written by the series’ regular creative team, including Chuck Lorre and Steven Molaro. Iain Armitage as Sheldon Cooper Zoe Perry as Mary Cooper Lance Barber as George Cooper Sr. Annie Potts as Meemaw Matt Hobby as Pastor Jeff Mary Grill as Officer Robin Technical Context: The "h255" Term
The episode’s A-plot centers on a classic Sheldon Cooper dilemma: the refusal to accept biological imperatives. When Sheldon discovers he has a loose baby tooth, he treats it not as a rite of passage, but as a structural failure of his own body. His reaction is characteristically dramatic—he fears the tooth fairy is a myth designed to prey on children, and he has no interest in participating in the exchange of enamel for currency. The B-plot about the dryer is simple but
The “H255” code is an internal Warner Bros. production number (part of the H-series for Young Sheldon ). For viewers, it’s irrelevant to quality—but for archivists, it places this episode between S03E01 (H254) and S03E03 (H256). No notable deleted scenes or alternate cuts exist for this code.
Directed by Nikki Lorre, the episode moves briskly at 21 minutes. The rivalry never overstays its welcome, and the resolution—Sheldon realizing Paige isn’t a threat but a different kind of mind—feels earned without being saccharine.