Ken Aymong , one of a handful of key lieutenants to executive producer Lorne Michaels at NBC ‘s “Saturday Night Live,” made a surprise cameo on the program’s latest episode — in the credits. Aymong, who retired from “SNL” in 2021 after joining the venerable program in the mid-1980’s, has returned to the show as a supervising producer for the show’s current 51st season, according to a person familiar with the matter. His name scrolled by during the show’s credits early Sunday morning as it