Dimension X presents “Knock,” episode 5, originally broadcast on NBC on May 6, 1950. This sustaining broadcast adapts Fredric Brown’s short story for radio, with a script by Ernest Kinoy.

Anthropology professor Walter Phelan believes he may be the last man on Earth—until a mysterious visitor knocks at his door. Arnold Moss stars as Phelan, with Luis Van Rooten and Joan Alexander, in a tense tale of isolation, captivity, and an encounter that challenges humanity’s place in a much larger world.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:40 Original Broadcast
30:16 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “Nightmare,” episode 36, originally broadcast on NBC on June 10, 1951. This tense technological fable was adapted for radio by George Lefferts from Stephen Vincent Benét’s poem “The Revolt of the Machines.”

At Long Island’s Brook Meadow atomic-pile project, statistician Samson Gurney spots a troubling pattern behind a string of supposedly routine mechanical accidents. As skepticism mounts, his investigation leads into the uneasy relationship between people, industry, and the increasingly complex machines around them. John Gibson stars as Gurney, with Rita Lynn, Joseph Julian, and Joe DeSantis.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:52 Original Broadcast
25:46 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “No Contact,” episode 27, originally broadcast October 28, 1950. Written by George Lefferts from a Lefferts and Ernest Kinoy storyline, this NBC sustaining-program production was directed by Edward King and produced by William Welch.

In 1987, Captain Thorson and Lieutenant Collier take the rocket Star Cloud toward Volta, following five expeditions that vanished at an invisible barrier in space. As Earth ground control awaits word, the mission becomes a suspenseful mystery of communication, trust, and danger in deep space. Luis Van Rooten stars as Captain Thorson, with Donald Buka as Lieutenant Collier.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:43 Original Broadcast
30:30 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “Nightfall,” episode 50, originally broadcast on September 29, 1951. This NBC drama adapts Isaac Asimov’s 1941 science-fiction story, with Ernest Kinoy’s radio adaptation directed by Fred Weihe. Lyle Sudrow stars as reporter Theremon, alongside Cameron Prud’homme as Dr. Aton and John McGovern as Dr. Sheerin.

On Lagash, a world illuminated by six suns, Theremon investigates an observatory’s troubling prediction: a once-in-2,049-years eclipse that will bring the planet’s first true darkness. As scientific warnings collide with public doubt and an ominous religious movement, the reporter follows the developing story from Saro City to the university observatory.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:50 Original Broadcast
31:17 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “The Martian Chronicles,” episode 20, originally broadcast on NBC on August 18, 1950. Sponsored by Wheaties, this adaptation was written for radio by Ernest Kinoy and draws on several linked stories from Ray Bradbury’s The Martian Chronicles.

On a lyrical, inhabited Mars, a woman’s dream of Earth becomes the opening note in a wider chronicle of rocket expeditions, human arrivals, and settlement on the red planet. Ray Bradbury hosted this compact half-hour adaptation, featuring Inge Adams, Roger De Koven, and Donald Buka.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:42 Original Broadcast
31:01 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “Dr Grimshaw’s Sanatorium,” episode 25, originally broadcast on NBC on September 22, 1950. Adapted by George Lefferts from Fletcher Pratt’s short story, the drama is directed by Edward King and stars Karl Weber as private detective John Doherty, with Roger De Koven as Arthur Kaye.

After a suspicious burial raises unsettling questions, Doherty goes undercover at an exclusive private sanatorium outside Gowanda, New York. Inside its secluded wards and locked-away clinic, he encounters a long-term patient and evidence that the institution may be concealing more than it admits.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:46 Original Broadcast
31:09 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “Perigi’s Wonderful Dolls,” episode 18 of the classic NBC Radio Network science-fiction series, originally broadcast on August 4, 1950. This original radio thriller was written by George Lefferts and produced by Van Woodward.

In Washington, D.C., a government official’s wife and young daughter visit a doll maker whose handcrafted creations can talk. When one unusual doll enters their home, an innocent purchase begins to feel increasingly uncanny. The cast includes Les Tremaine, Joan Alexander, Denise Alexander, and Joe De Santis.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:40 Original Broadcast
29:49 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “Competition,” episode 30, originally broadcast on NBC on November 19, 1950. This sustaining-period drama was adapted by Ernest Kinoy from E. Mayne Hull’s short story and features Les Tremayne and Elaine Ross.

Aboard an immigration ship bound from Earth toward the Red Stars, civilian passengers look forward to new lives on distant colony worlds. But a young woman finds herself caught in a dangerous struggle over the voyage’s destination and the powerful interests competing beyond Earth.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:41 Original Broadcast
29:59 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “Outer Limit” (also known as “The Outer Limit”), episode 1, originally broadcast April 8, 1950. In the series’ premiere, adapted by Ernest Kinoy from Graham Doar’s short story, experimental pilot Steve Weston pushes a rocket aircraft to the edge of space from a Southwest desert test base in the then-future year 1965.

When Weston disappears from radar during a flight with only minutes of fuel, ground controller Hank Hansen and the base staff confront an unsettling mystery. Joseph Julian stars as Weston, with Wendell Holmes as Hansen and Joe DeSantis as Major Donaldson.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:58 Original Broadcast
31:09 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio

Dimension X presents “The Roads Must Roll,” episode 22, originally broadcast on September 1, 1950. Adapted by Ernest Kinoy from Robert A. Heinlein’s short story, this NBC Radio Network drama features Wendell Holmes and Ralph Bell.

In a future America, immense electro-hydraulic rolling roads carry passengers and freight across the country. When the specialists who operate this indispensable system press their demands, a transportation marvel becomes a tense struggle over expertise, power, and public dependence.

Dimension X presents the original broadcast with a newly produced contextual introduction, a short closing announcement, and gently cleaned/mastered audio for a more consistent listening experience.

Chapters:
00:00 Victor Sterling Introduction
00:46 Original Broadcast
30:28 Closing

Support Old Time Retro Radio at https://www.patreon.com/oldtimeretroradio