Seventy-five thousand generations, since our ancestors set this program in motion.
6 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 4 sitcom.
You can hear this line at 00:13:36.116 in the Blu-ray version of the TV Series.
Quote context
[...]
- Er, Vroomfondel, how come we never think of things like that?
- Dunno. I think our minds must be too highly trained, Majikthise.
- Yes, very salutary, but what about the Earth and mice and things?
- All will become clear to you.
- Are you not anxious to hear what the computer had to say seven and a half million years later?
- Seven and a half million years we've waited.
- Seventy-five thousand generations, since our ancestors set this program in motion.
- And in all that time, we shall be the first to hear the computer speak.
- Deep Thought is about to speak.
[...]