NBC’s fall 1966 advertising art for “The Man From U.N.C.L.E.” was sold to the public as part of a set of four posters — along with “I Spy,” “Get Smart” and “Bonanza” — available for the enormous sum of one dollar. But the network’s ad art for “The Girl From U.N.C.L.E.” has rarely been seen in color.

Famed cartoonist Jack Davis handled NBC’s fall 1965 advertising art, including this drawing of Solo and Illya. Celebrity caricaturist Al Hirschfeld illustrated the reviews in “TV Guide” for several years, including Cleveland Amory’s pan of “The Girl From U.N.C.L.E.”