All in the Family S02E12 - Cousin Maude's Visit

Edith has been running herself ragged caring for Archie, Mike and Gloria, who have all come down with a terrible flu. This prompts her to call on her extremely liberal Cousin Maude to come and stay with the Bunkers and help out. Maude proves to be salt in an already open wound for Archie, who has never liked Maude and vice versa.