Here's what the Encyclopaedia Galactica has to say about alcohol. It says that alcohol is a colourless, volatile liquid formed by the fermentation of sugars, and also notes its intoxicating effect on certain carbon-based life forms.
16 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 1 sitcom.
You can hear this line at 00:09:19.433 in the Blu-ray version of the TV Series.
Quote context
[...]
- Get up! Let the man lie down.
- And no sneaky knocking Mr Dent's house down while he's away, all right?
- Myself, I'd trust him to the end of the Earth.
- Come on. We've gotta get some alcohol.
- But I'm hardly dressed to go to the pub.
- His name is Zaphod Beeblebrox and we shall learn more of his wisdom later.
[...]