That's a very good question, and an interesting thing about the casting of this, for example.

When we first started thinking about this project and I was first asked to come on board, one of the things that we talked about of course was how we were going to cast this. Were we going to try and reassemble as much of the original cast or were we going to go for a completely clean slate?

Having thought about the merits of both, we decided on the latter for a number of reasons. Obviously everyone who was in the original cast is a bit older now, and some of them are supposed to be playing students. A couple of people from the original cast sadly are no longer with us so obviously we wouldn't have been able to have them, so rather than have a sort of a half-baked reunion party that might have been a bit funny in some ways, we thought "No let's just go for a clean sweep and re-cast from scratch."

So in that respect it's not a nostalgia fest, but in other respects it harks back. It is the original script that we're using, slightly adapted by Garry Russell to fit the audio format and to fit Paul's Doctor and his Doctor's relationship with Romana, but these are only very slight tweaks. For the main part it is substantially the original Douglas Adams script, and it is set in 1979 so in that respect we are doing it very faithfully to the original intentions of the script.