His work on the ray machine will be complete soon, and I'll get rid of him too.

3 seconds sound clip from Superman (1948) - The Payoff (Chapter 15).

You can hear this line at 00:03:58.959 in the Blu-ray version of the episode.

Quote context

[...]

- Mm. They've outlived their usefulness.

- I still wonder.

- About what?

- Graham, for one thing. Yeah, what about him?

- Don't tell me you're going soft and can't take care of the good doctor.

- Hackett never let us know how he kept Graham under control.

- His work on the ray machine will be complete soon, and I'll get rid of him too.

- I hope you're right.

- We'll waste no time. I'm ready to give my ultimatum. Set up the radio transmitter. On police wavelength.

- Attention Metropolis Police. This is the Spider Lady speaking.

- Inform editor White of the Daily Planet that I have an urgent message for him. Tell him to tune in at once.

[...]