- Who are you?
- I told you. I'm a field researcher for the Guide.

5 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 1 sitcom.

You can hear this line at 00:24:28.496 in the Blu-ray version of the TV Series.

Quote context

[...]

- Ah. Storeroom.

- Where are we going?

- Who knows? Off this ship, that's for sure.

- We've only just arrived. Hadn't we better say hello and thank you, and things?

- Listen, this is a Vogon spaceship. We just pick up what we need, and then we get off it, right?

- Right.

- Stun guns.

- Any good?

- No.

- Who are you?

- I told you. I'm a field researcher for the Guide.

- Telecom systems.

- Got stuck on the Earth longer than I meant. Went for a week, got stuck for 15 years.

- Tele-psychic helmets.

- How did you get here in the first place?

- Easy. Got a lift with a teaser.

[...]