This is the only episode of the series to feature narrations other than the opening and closing narrations: one in Act I and another in Act IV.
Some of Robert Van Eps music cues were incorporated in the 1966 movie "Namu, the Killer Whale" even though he was not credited for his music.
This episode does not end with oscilloscope trace and the spiel "We now return control of your television set to you. Until next week at this same time, when the Control Voice will take to... The Outer Limits!" It cuts straight from the end narration to the cast list.