William Daniels, who plays the elder John Quincy Adams on this series, first played the role of his father, John Adams, in the Broadway and movie versions of the musical "1776".
George Grizzard, who played John Adams, was one year younger than William Daniels, who played John Quincy Adams from age fifty onward.
In spite of the mini-series airing between January and April of 1976, eligibility requirements for the 1976 and 1977 Emmy Awards overlapped. The program received Emmy nominations in two separate ceremonies.
Christopher Lloyd's television debut.