No. Roughly the right time period, though.
A member of the King Family (actually, a niece of the King Sisters) joined the show after a few seasons. The woman who played her stepmother-in-law actually WAS her stepmother-in-law, for a time.
The opening theme song was performed by the star of the show.
Three unrelated guys play brothers. Later, the real brother of one of them plays an adopted brother.
George