After Sheldon dismantles the refrigerator to stop an annoying hum, he gets a paper route to pay for the repairs.

When Dr. Sturgis bonds with Paige, another 10-year-old genius, Sheldon’s jealousy leads Connie to intervene. Mary invites Paige’s family over for a play date.

When George Sr. asks Sheldon to keep a secret from Mary, the stress of not being honest drives Sheldon to hideout at Tam’s for his first sleepover.

When Dr. Sturgis recommends Sheldon and Missy for a university research study on twins, Mary is unhappy when the test results go to Sheldon's head.

Mary clashes with Sheldon's drama teacher over plans for a Halloween fundraiser for the church. Georgie falls for a rebellious teenage girl whom Sheldon is tutoring.

Sheldon gets into trouble with fellow child genius, Paige at the science museum. George is forced to play therapist to Paige’s bickering parents. Mary, Georgie and Missy help Connie with a garage sale.

A video game takes over Sheldon and Connie’s life. George Sr. is jealous when Georgie bonds with Herschel at the auto shop.

Sheldon studies his family for a psychology project. Thanksgiving dinner turns into a family fight when George Sr. is offered a job in Oklahoma.

Cuando Sheldon descubre que las personas con un retraso en el crecimiento pueden convertirse en marginados sociales al hacerse adultos, decide comportarse como un niño gastando bromas a todo el mundo (de aquí surge su famosa frase, Bazinga). Por otro lado, la relación entre Meemaw y el Dr. Sturgis es puesta a prueba cuando ella acepta enseñarle a conducir.

Sheldon experimenta en Missy, y Georgie se une al estudio bíblico de Mary para pasar más tiempo con su enamorado, Veronica.

Cuando Sheldon tiene que pasar unos días en el hospital, se convierte en el peor paciente del mundo. Además, Missy se hace a la idea de cómo sería la vida sin su gemelo.

Sheldon intenta construir un reactor nuclear. Además, un cóctel universitario se calienta cuando el colega del Dr. Sturgis, el Dr. Linkletter (Ed Begley, Jr.), coquetea con Meemaw, y Georgie está desconsolada cuando se entera de que Veronica (Isabel May) tiene un novio

Sheldon usa su nueva amistad con el matón de la escuela para dirigir al jefe Georgie. Además, Missy roba el maquillaje de Meemaw para el día de la fotografía.

Sheldon and Dr. Sturgis have their first fight when Dr. Sturgis marks a question wrong on Sheldon's test. Also, Mary takes over for Pastor Jeff when he's out sick.

Things spiral out of control when Sheldon boycotts his favorite bread company. Also, Georgie offers Veronica a shoulder to cry on when she's dumped by her boyfriend.

Inspired by his hero, Albert Einstein, Sheldon tries his hand at the violin. Also, Mary and Connie secretly buy a pregnancy test when Mary thinks she's pregnant

Sheldon moves in with Dr. Sturgis for the weekend to see what his life will be like in college. Also, a lonely Mary tries to bond with the other Coopers during Sheldon's absence.

Unhappy that school funds are going towards football rather than academics, Sheldon decides to run for class president.

Georgie is thrilled when Veronica stays at the Coopers' house for a few days. Also, Connie and Dr. Sturgis celebrate their one-year anniversary.

The Coopers help Pastor Jeff through a rough patch in his marriage. Also, Sheldon pressures church members for donations when Mary takes him to work for a day.

Sheldon invites the entire school to a party for the Nobel Prize announcements. Also, Connie learns more about Dr. Sturgis' past, and Georgie's desire for cable TV leads to a standoff between him and George Sr.