It is likely you are thinking of the original "Christmas with the King Family" special, which was broadcast in 1976. The 2009 special was a reunion special and included the following members of the King family:
* The King Sisters:
* Yvonne King: She was a part of the original King Sisters group.
* Gretchen King: She was also part of the original King Sisters group.
* Jack King: He was the father of the King Sisters.
* Louise King: She was the mother of the King Sisters.
* The King Family: This included other family members such as:
* Don King: Yvonne King's son.
* Larry King: Gretchen King's son.
While the 2009 special was a reunion and a celebration of the King family's legacy, it wasn't a film or series with outside actors. It was primarily a family affair.