- Let's turn on some music while we're waiting.
- Orders were to stay on our wavelength.
- Oh, nothing will happen for a while. It'll help pass the time.

13 seconds sound clip from Superman (1948) - Superman To The Rescue (Chapter 8).

You can hear this line at 00:08:48.294 in the Blu-ray version of the episode.

Quote context

[...]

- But what if Superman is there?

- You and Brock will take care of Superman with Dr. Hackett's new weapon, if it's finished in time.

- It will be. You needn't worry about Superman.

- Now we'll work out the details.

- I want all men to be at their stations before that truck leaves Washington.

- Get up the other road and watch for the truck.

- Do you think that thing will really stop Superman?

- Hackett says it will. This little toy contains kryptonite.

- I hope he's right.

- Yeah, we'll soon find out.

- Let's turn on some music while we're waiting.

- Orders were to stay on our wavelength.

- Oh, nothing will happen for a while. It'll help pass the time.

- An important message just came in from W1.

- What is it?

- W1 reports the Reducer Ray is not on the truck. It was only a trap to catch us.

- Where is the ray machine?

- On a special train due at Jones Crossing at 3:00.

- Send two men to stop the train. Be sure they take the special equipment.

- I'll notify the men in car four the whole thing is a trap.

- Right.

[...]