The Jeffersons is the longest running African American sitcom to date, followed by Family Matters(9 seasons) and The Cosby Show(8 Seasons).
The Jeffersons outlasted its parent series All in the Family (with 9 seasons) by 2 seasons. The Jeffersons also stayed on 6 years after All in the Family ended its run.
This was the final episode of The Jeffersons taped on February 12, 1985.
The Jeffersons was unexpectedly cancelled after the final episode of the season was already taped. If they had known earlier, a series finale episode most likely would have been taped.