Thanks, Kent, for the lift.
1 seconds sound clip from Superman (1948) - Superman At Bay (Chapter 14).
You can hear this line at 00:02:26.013 in the Blu-ray version of the episode.
Quote context
[...]
- Why does the fugitive Hackett appear in public?
- Can even Superman counter all the moves of his clever enemies?
- Don't fail to see Superman at Bay, chapter 14 of Superman at this theater next week.
- I'll go and see if White is all right.
- Let's not forget we're still getting out a newspaper.
- I've checked on Anton. They're holding him at the city jail, incommunicado.
- And it won't be sweet music for the Spider Lady.
- So far, he's refused to break.
[...]