Grandma USA - S3-E12
Plot hole: Thelma never mentions the song name she will sing at the pageant, as she had no idea she needed a talent, thus she couldn't tell them ahead of time, but they still start to play the right one for her.
April Fools - S5-E18
Plot hole: As Mama tells Iola about the April Fools' jokes the family has played on her over the years, Iola expresses surprise. Considering Iola has been Mama's friend for years and is constantly at the Harper house, it seems impossible that Iola had never heard of any of the April Fools' pranks.
Plot hole: Vinton demonstrates the intercom with the instruction to push a button to talk but throughout the episode, they listen in on each other. This would not be possible if the person (s) being listening on is not holding the button to activate the mike.
