The Waltons (1972)

S2E3 The Separation

Title: The Rift Plot: The household faces a dire financial setback, leading to a power shutoff. In secret, Grandpa decides to find a way to earn some cash but keeps his intentions hidden. This frustrates Grandma, resulting in a heated argument that prompts Grandpa to leave home. Eventually, the overdue bill is settled, and the feuding couple reconciles at a lively barn dance, putting their differences aside.