Be sure to see Superman to the Rescue, chapter eight of Superman, at this theater next week.
6 seconds sound clip from Superman (1948) - Into The Electric Furnace (Chapter 7).
You can hear this line at 00:16:18.972 in the Blu-ray version of the episode.
Quote context
[...]
- This is all we need to handle Superman.
- Now, wait a minute. Put him in the bin.
- We'll give Superman 10 minutes more. Our orders were to get him. Go on.
- What daring scheme of the Spider Lady's is this?
- Will this new weapon of Dr. Hackett's destroy Superman?
- Be sure to see Superman to the Rescue, chapter eight of Superman, at this theater next week.
- This looks like a job for Superman.
[...]