WJSV Complete Day is a unique historical recording that captures an entire day of broadcasting on September 21st, 1939, from radio station WJSV in Washington, D.C. Recorded on transcription disks before the introduction of magnetic recording tape, the audio quality is generally good to excellent, with some instances of distortion.

Listeners can experience the full day's programming as it happened, including music, comedy, drama, news, advertisements, station breaks, and technical difficulties. This recording showcases a time when hamburgers cost 15 cents, a six-pack of Coke was a quarter, and the future was on display at the 1939 New York World's Fair.

The recording process involved cutting 38 double-sided 16-inch transcription disks, with each side capturing approximately fifteen minutes of audio. Someone had to be available every fifteen minutes for nineteen hours to set up and execute each transcription. This remarkable recording offers a rare, in-depth look at broadcast history and the technology of the time.