No airdate for Season 0
Season 1 of The Man from U.N.C.L.E. premiered on Sep 22, 1964
Season 2 of The Man from U.N.C.L.E. premiered on Sep 17, 1965
Season 3 of The Man from U.N.C.L.E. premiered on Sep 16, 1966
Season 4 of The Man from U.N.C.L.E. premiered on Sep 11, 1967