"Hobbitses, Physicses and a Ball with Zip"

On Young Sheldon Season 3 Episode 4, Sheldon's new obsession with "The Lord of the Rings" leads to an unhealthy habit, forcing him to take a break from science.

Impressing Veronica - Young Sheldon
"An Entrepreneurialist and a Swat on the Bottom"

On Young Sheldon Season 3 Episode 3, Sheldon takes matters into his own hands when Meemaw refuses to drive him to a lecture with Dr. Linkletter.

Avoiding Temptation - Young Sheldon
"A Broom Closet and Satan's Monopoly Board"

On Young Sheldon Season 3 Episode 2, without Dr. Sturgis, Sheldon must find a new way to be academically challenged, and Mary helps Pastor Jeff avoid temptation.

Where Is Sheldon Headed - Young Sheldon
"Quirky Eggheads and Texas Snow Globes"

On Young Sheldon Season 3 Episode 1, when Dr. Sturgis experiences a nervous breakdown, Mary worries Sheldon may be headed down a similar path.

"A Swedish Science Thing and the Equation for Toast"

On Young Sheldon Season 2 Episode 22, Sheldon invites the entire school to a party, as Georgie's desire for cable TV leads to a standoff between him and George.

"A Broken Heart and a Crock Monster"

On Young Sheldon Season 2 Episode 21, Mary helps Pastor Jeff through a rough patch in his marriage, and Sheldon pressures church members for donations.

Veronica Stays Over - Young Sheldon
"A Proposal and a Popsicle Stick Cross"

On Young Sheldon Season 2 Episode 20, Georgie is thrilled when Veronica stays at the Coopers' house and Meemaw and Dr. Sturgis celebrate their anniversary.

"A Political Campaign and a Candy Land Cheater"

On Young Sheldon Season 2 Episode 19, not happy that school funds are going towards football rather than academics, Sheldon decides to run for class president.

"A Perfect Score and a Bunsen Burner Marshmallow"

On Young Sheldon Season 2 Episode 18, Mary gets lonely when Sheldon moves in with Dr. Sturgis for a weekend to see what his life will be like in college.

"Albert Einstein and the Story of Another Mary"

On Young Sheldon Season 2 Episode 17, inspired by his hero, Albert Einstein, Sheldon tries his hand at the violin, and Mary worries that she might be pregnant.