Hoover would lend his imprematur to various entertainment outlets to ensure a favorable image for the FBI. Case in point: ABC radio's crime drama This is Your FBI, to which he gave his endorsement and (supposedly) opened past files of the agency to producer/director Jerry Devine to be adapted for the program. Hoover called the show "the finest dramatic program on the air."
Running from April 6, 1945 to January 30, 1953, This is Your FBI produced 409 half-hour shows with Stacy Harris starring as (fictional) FBI agent Jim Taylor. Frank Lovejoy served as the show's narrator during its first year.
Week after week we learned that FBI = good, crime/criminals = bad, as wass the case with this episode, "The Friendly Killer," which first aired on June 21, 1945.