 In 1945, Denker began his full-time writing career as the writer of the Radio Readers Digest on CBS.One of his scripts, he says, was the first radio drama about a physical transplant, a corneal transplant of a human eye to restore sight.In 1947, Denker wrote the first script for the religious radio series "The Greatest Story Ever Told", which, in 1949, won a special George Foster Peabody Citation, the Christopher Award, the CCNY Outstanding Program of the Year Award, the Variety Award of the Year 1947, and others.