Trivia, Quotes, Notes and Allusions
No ending or opening narration.
Two other Twilight Zone episodes have been inspired by Henry Slezar's stories "The Old Man in the Cave" (Season 5, episode 127) and "The Self-Improvement of Salvadore Ross" (Season 5, episode 136).
This episode is only 10 minutes.
This episode is based on the short story "Examination Day", by Henry Slesar. The story was first published in Playboy (February, 1958).