Dimension X: Hello Tomorrow (Dramatized‪)‬

This post-apocalyptic episode of Dimension X originally aired on September 15, 1950.
Featuring "adventures in time and space told in future tense", Dimension X aired over NBC from April 8, 1950, through September 29, 1951. The series adapted stories by the modern masters of science fiction, including Isaac Asimov, Ray Bradbury, Robert Heinlein, Clifford Simak, Theodore Sturgeon, and many others.