Only Superman could get us out of this.
— Lois Lane (Noel Neill)
2 seconds sound clip from Superman (1948) - Blast In The Depths (Chapter 12).
You can hear this line at 00:16:41.534 in the Blu-ray version of the episode.
Quote context
[...]
- We gotta get out of here. If he found us, others can.
- Are we gonna take any more of the chromite?
- Too bad company dropped in on us. Now we gotta do something to keep 'em from blabbing.
- That's a long story. I'll tell you about that later.
- Only Superman could get us out of this.
- Now to find a way out of here.
- Have they gone? Can you hear them?
- How can Jimmy hope to stop these men?
- Does the Spider Lady plan to take over the Daily Planet?
[...]