It's funny that you should mention that.
3 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 6 sitcom.
You can hear this line at 00:19:13.411 in the Blu-ray version of the TV Series.
Quote context
[...]
- He said how lucky I was to be going off on the first ship.
- But they made sure they sent all of you lot off first, anyway.
- Yes, well I can see that that would be very important.
- Can you?
- Shh.
- And the rest of the ships followed on after you, didn't they?
- It's funny that you should mention that.
- Curiously enough, we haven't heard a peep out of them since we left five years ago.
- Yet, they must be behind us somewhere.
- Yes. Unless, of course, they're all eaten by the goat.
- Funny, now that I come to tell this story to someone else...
- Don't you find it's a bit odd, Number Three? Yes, it is a bit odd though, isn't it? Yes, it's odd.
[...]