The Will Sanford and Son : Season 6 Episode 20

Aunt Esther and Woody stop by for a visit and as usual, Fred insults Esther and she responds by promptly hitting Fred in the head with her purse. Apparently the blow to his head is so strong that it knocks him out and when he wakes up begins having memory lapses. This prompts him to make up his will and holds a will reading in the living room.