He found fame on radio with "Duffy's Tavern", portraying the wisecracking, malaprop-prone barkeeper Archie. The successful radio program aired on CBS from 1941 to 1942, on the NBC Blue Network from 1942 to 1944, and on NBC from 1944 to 1951. Speaking in a nasal New York accent, and sounding like just about every working class New Yorker his creator had ever known, Gardner as Archie invariably began each week's show by answering the telephone and saying, "Duffy's Tavern, where the elite meet to eat, Archie the manager speaking, Duffy ain't here—oh, hello, Duffy."