Season 4

When Bubba has trouble in high school, it's revealed that Mama failed to graduate as well.

Mama develops an addiction to online shopping.

When Vint is accused of being Raytown's "Courteous Crook", Mama and Iola take action to clear his name.

Vint and Naomi are separated yet living in the same house (and driving Mama crazy in the process).

After nearly being hit by lightning, Mama finds a new outlook on life.

After 50 years, Mama finally gets her chance to sing at Raytown's Founders' Day celebration.After nearly being hit by lightning, Mama finds a new outlook on life.

Mama tries to become romantic with her night school teacher.

Reverend and Mrs. Meechum drop by to ask Thelma if she would mind watching their little Eugene while they visit the shut-ins at the hospital.

Didi, an old friend of Naomi's and a professional wrestler, talks Naomi into being a last-minute substitute for her ailing tag-team partner for a match. When Mama accidentally knocks Didi out just before the match, Naomi and Mama have to wrestle against Didi's weighty opponents.

Mama hopes to raise enough to purchase a VCR by selling Iola's gaudy, homemade gifts at a yard sale.

When Mama traumatizes Vinton at work with the "Binky Bunny" lunchbox she made for him when he was a kid, she must find a way to cure him of his trauma before he loses his job.

A man from the State Department asks the Harpers to host a Russian national named Olga for one day as part of "Project Heartland."

Tired of living in the basement, Vint and Naomi agree to switch rooms with Bubba - pleasing everyone except Mama.

After Bubba comes home late and drunk, Mama is enraged and gives him an excessive punishment.

Iola spends all her time with a new friend.

After attending a family wedding, Bubba, Mama, and Iola fantasize about what married life would be like with the objects of their affections.

After Uncle Oscar passes away, Mama is willed his gabby pet parrot.

Mama starts a senior citizens' tap-dancing troupe in an effort to get Aunt Effie to exercize.

Mama finds herself competing on Jeopardy!

After Mama wins a trip to Hawaii on Jeopardy!, Mama and the family (plus Iola) say aloha!

Vint's dumb luck gets Mama dragged to a party with the "beach bum" she's been trying to avoid.

When Bubba gets stood up by his prom date, Mama sets him up with Iola's nerdy niece, Vernette.

The Harpers rent out a room during the Tri-State Fair.

After Naomi loses her memory, Mama seizes the opportunity to "reprogram" her.

Mama and Bubba will graduate from high school together, but Bubba wants to skip the ceremony.