The ship does in fact belong to Disaster Area.

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

You can hear this line at 00:02:21.320 in the Blu-ray version of the TV Series.

Quote context

[...]

- He has, for instance, had his planet demolished to make way for a new hyperspace bypass...

- And has thereafter been confronted with the disconcerting knowledge that the Earth was, in any case, not what it appeared, but was in fact a gigantic supercomputer designed to calculate the ultimate question of 'life, the Universe and Everything. '

- The answer to which is now known to be 42.

- He and his companions have, furthermore, been blasted far forward in time to the 'Restaurant at the End of the Universe', from which they are currently returning in a ship which could not, in all honesty, be said to belong to them.

- Can they now relax for a while and take stock? No.

- The ship does in fact belong to Disaster Area.

- A plutonium rock band whose stage act traditionally ends with a black stunt ship on automatic pilot crashing into the heart of a nearby sun.

- Of this, however, Arthur Dent and his companions are totally unaware.

- They decide to relax for a while and take stock.

- Listen, Earthman, you've got a job to do, right? The question to the ultimate answer, right?

[...]