All in the Family S03E20 - Archie is Branded

One morning Archie gets up, goes to his front door to get the newspaper and is shocked to discover that someone has painted a swastika on his front door. Archie soon gets into a debate with Mike as to who could have painted it and why. As Archie is calling the police to report it, the Bunker home gets a visit from a man from a Hebrew vigilante group who wants to plan some retaliation.