This is Your FBI debuted over ABC in New York in April of 1945. It ran stories from official Federal case files and was sponsored by the Equitable Life Assurance Society. After it cracked radio’s top-twenty-five in 1947, ABC moved the series to the west coast.

Now recording from KECA in Hollywood, famed radio character actor Stacy Harris took the lead of Special Agent Jim Taylor.

In December of 1948, This is Your FBI gave ABC something it lacked on any other evening: the highest rated show on the air. That month, the show’s rating was 16.2, while Jimmy Durante fell to a 14.3 for NBC and Easy Aces pulled a 13.4 on CBS.

On Christmas Eve 1948, This Is Your FBI broadcast an episode entitled “The Return of Saint Nick” about a pageant Santa who inexplicably runs away from his favorite holiday event.

This is Your FBI proved that even G-men celebrate Christmas.