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.
Mama's Family (1983)
1 mistake in Grandma USA
Starring: Ken Berry, Allan Kayser, Dorothy Lyman, Vicki Lawrence
Genres: Comedy
Naomi Oates Harper: Oh, you just love to put people down, don't you, Mrs. Harper?
Thelma 'Mama' Harper: It is not only a pleasure, I see it as my duty.