- An episode is spent trying to prevent crooks from misusing a scientist's new supercomputer (an "electronic brain" in those days) to deduce Superman's secret identity. After they've been stopped, the scientist (played by Sterling Holloway) is alone with the machine and realizes he wants to know the answer himself, so he asks it. Its answer is a strip of ticker tape that says, "Wouldn't you like to know!"
- This moment from "The Mysterious Cube":
- In "The Defeat of Superman", a moment at the hero's expense:
Jimmy (referring to the block in the room): They called it Kryptonite.Superman: I don't care what they call it.He walks up to the door and hits it, to no effect.Superman: Did you say Kryptonite?