All in the Family S09E03 - Reunion on Hauser Street

While Barney continues to mope around the bar because his wife Blanche left him for another man, Blanche suddenly shows up at the Bunkers' doorstep because her exterminator boyfriend just dumped her in Atlantic City. Edith takes her to the bar to attempt reconciliation, but finds that Archie is urging Barney to do the exact opposite.