This Is Your FBI

This Is Your FBI was a radio crime drama which aired in the United States on ABC from April 6, 1945 to January 30, 1953 for a total of 409 shows. FBI chief J. Edgar Hoover gave it his endorsement, calling it "the finest dramatic program on the air".

Producer-director Jerry Devine was given access to FBI files by Hoover, and the resulting dramatizations of FBI cases were narrated by Frank Lovejoy (1945), Dean Carleton (1946–1947) and William Woodson (1948–1953). Stacy Harris played the lead role of fictional Special Agent Jim Taylor. Others in the cast were William Conrad, Bea Benaderet and Jay C. Flippen.

This Is Your FBI was sponsored during its entire run by the Equitable Life Assurance Society of the United States

X-Minus One

X Minus One was a half-hour science fiction radio drama series broadcast from April 24, 1955 to January 9, 1958 in various timeslots on NBC.

 Initially a revival of NBC's Dimension X (1950–51), the first 15 episodes of X Minus One were new versions of Dimension X episodes, but the remainder were adaptations by NBC staff writers, including Ernest Kinoy and George Lefferts, of newly published science fiction stories by leading writers in the field, including Isaac Asimov, Ray Bradbury, Philip K. Dick, Robert A. Heinlein, Frederik Pohl and Theodore Sturgeon, along with some original scripts by Kinoy and Lefferts.

Included in the series were adaptations of Robert Sheckley's "Skulking Permit," Bradbury's "Mars Is Heaven", Heinlein's "Universe" and "The Green Hills of Earth", " Pohl’s "The Tunnel under the World", J. T. McIntosh’s "Hallucination Orbit", Fritz Leiber’s "A Pail of Air", and George Lefferts' "The Parade".

The program opened with announcer Fred Collins delivering the countdown, leading into the following introduction (although later shows were partnered with Galaxy Science Fiction rather than Astounding Science Fiction):

Countdown for blastoff... X minus five, four, three, two, X minus one... Fire! [Rocket launch SFX] From the far horizons of the unknown come transcribed tales of new dimensions in time and space. These are stories of the future; adventures in which you'll live in a million could-be years on a thousand may-be worlds. The National Broadcasting Company, in cooperation with Street and Smith, publishers of Astounding Science Fiction presents... X Minus One. 

The series was canceled after the 126th broadcast on January 9, 1958.

However, the early 1970s brought a wave of nostalgia for old-time radio; a new experimental episode, "The Iron Chancellor" by Robert Silverberg, was produced in 1973, but it failed to revive the series. NBC also tried broadcasting the old recordings, but their irregular once-monthly scheduling kept even devoted listeners from following the broadcasts.