Well, it might give us a clue.

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

You can hear this line at 00:31:46.200 in the Blu-ray version of the TV Series.

Quote context

[...]

- Terrific.

- What?

- We've cocked it up.

- What do you mean?

- The Golgafrinchans. Us. Just by arriving here.

- The caveman is part of the programme. And they're dying out because of us, therefore no question.

- What about my brain?

- What about your brain?

- Marvin said the question was printed in my brain-wave patterns.

- All right, wrong question. It's still cocked up.

- Well, it might give us a clue.

- Well, if it's in your brain, how are we going to get at it?

- If it's in my brain and I don't know how to reach it, suppose we introduce some random element which could be shaped by the brain-wave pattern?

- Such as?

- Pulling out letters from the Scrabble bag.

- Brilliant!

- Right.

- Right.

- Right, first four letters. W-H-A-T, what.

- Great. It's working.

[...]