All in the Family S03E08 - Mike Comes Into Money

Mike comes into some money when his Uncle Alex dies and leaves him $275. Archie tries to persuade Mike into giving the money to him for room and board, but Mike would rather give it to George McGovern's presidential campaign. This sparks a big feud, leading to a dinner separation: Gloria and Mike buy and cook their own food while Edith and Archie do the same.