The Jeffersons (1975)

S11E18 That Blasted Cunningham

George finds himself embroiled in another fierce advertising rivalry with Cunningham Cleaners, as both sides are determined to outdo each other in their promotions. However, things escalate unexpectedly, resulting in Cunningham's untimely demise. Now, George must confront the wrath of Cunningham's grieving widow, who is set on avenging her husband's death.