All in the Family S04E11 - Black is the Color of My True Love's Wig

Wanting to try something new, Gloria buys a brunette wig and it immediately arouses Mike, who desperately tries to get Gloria to wear it while they make love. However, Gloria is insulted which leads to a big fight that lands Mike to sleeping on the couch. Meanwhile, Archie is out of town on a Veteran's retreat, but when he arrives home he finds himself in the middle of the argument centering on the wig.