In 1997 TV Guide ranked this episode number 48 on its "100 Greatest Episodes of All Time".
"Fun Darrin" wants to order another "Magnum," which is the term for a double-size bottle of champagne, containing 1.5 liters.
This episode was remade during the sixth season as Samantha's Better Halves (1970), broadcast January 1, 1970.
The title is from the phrase, "United we stand, divided we fall." Though the phrase dates back to the Aesop's Fables "The Four Oxen and the Lion" and "The Bundle of Sticks," the current wording is used by many entities as a motto, including the state of Kentucky.
At the poolside, 'Fun' Darrin sings the last lines of "If You Knew Susie", which became Eddie Cantor's best-known success of the 1920s, recorded on April 6, 1925.