But this was as nothing to their joint surprise

3 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 4 sitcom.

You can hear this line at 00:01:00.027 in the Blu-ray version of the TV Series.

Quote context

[...]

- It was destroyed five minutes before the completion of the purpose for which it was built. We have to build another one.

- Mice?

- Arthur bruised his upper arm.

- Arthur Dent, a perfectly ordinary Earthman, was rather surprised when his friend, Ford Prefect, suddenly revealed himself to be from a small planet somewhere in the vicinity of Betelgeuse, and not from Guildford after all.

- He was even more surprised when, a few minutes later, the Earth was unexpectedly demolished to make way for a new hyperspace bypass.

- But this was as nothing to their joint surprise

- However, all four of them are soon totally overwhelmed by surprise when they discover that the ancient world of Magrathea, a planet famed in legend, for its surprising trade in manufacturing other planets, is not as dead as it was supposed to be.

- For Zaphod, Ford and Trillian, surprise is pushed to its very limits when this happens.

- And when Arthur Dent encountered Slartibartfast, the Magrathean coastline designer, who won an award for his work on Norway...

- And learns that the whole history of mankind was only being run for the benefit of a few white mice anyway...

[...]