- I beg your pardon?
- What? I'm sorry. Fatuous thing to say, really.
- I thought so.

6 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 4 sitcom.

You can hear this line at 00:19:52.154 in the Blu-ray version of the TV Series.

Quote context

[...]

- Attention, please. Would Slartibartfast and the visiting Earth creature, please report at once to the reception area.

- Now? To meet mice? You want me to meet mice now?

- It won't be a great social occasion, I'm afraid.

- Repeat, at once!

- I seem to be having this tremendous difficulty with my lifestyle.

- I beg your pardon?

- What? I'm sorry. Fatuous thing to say, really.

- I thought so.

- It is, of course, well known that careless talk costs lives, but the full scale of the problem is not always appreciated.

- For instance, at the very moment that Arthur said, 'I seem to be having this tremendous difficulty with my lifestyle'...

- A freak wormhole opened up in the fabric of the space-time continuum, and carried his words far back in time, across infinite reaches of space to a distant galaxy, where strange, war-like beings were poised on the brink of frightful interstellar battle.

- The two opposing leaders were meeting for the last time.

[...]