704 Hauser to E/R (1984)

704 Hauser Street featured an African American family living in the house the Bunker's lived in on All in the Family. 704 Hauser Street's Cumberbatch family was visited by Archie Bunker's grandson during the show's first episode.

The Jeffersons' George Jefferson was the second All in the Family supporting character to spinoff onto his own show.

E/R's Nurse Julie Williams was related to The Jeffersons. And George Jefferson appeared on E/R