My awfully quick transcript of the Crossroads bit:

Elaine: Not only do we have musicals in common we also appeared and
you probably don't know this as I'm sure as many people don't we
appeared in the same soap.

Shona: Really!

E: At different times of course, yes can you imagine what it is?

S: Well it has to be Crossroads.

E: Indeed! Yes, oh yes.

S: Really! When did you do that?

E: Oh crikey, I was a child a mere child! But listen did you learn a
lot about acting and the whole process of television making I suppose
one could say through that?

S: Well I left school to do Crossroads..

E: Well I did I practically, thats how long ago it was, and how long
Crossroads has been going obviously.

S: Well I know, absolutely. It came off air in '89.

E: So you were in the new version presumably?

S: Yeah, when they called it Crossroads: Kings Oak or something like that.

E: Oh did they, oh right ok.

S: And yeah I went in for three episodes and so often does happen with
soaps if they like what you're doing [say] 'will you stay on, will you
stay on' and I ended up there for two years. So it did really become
my learning ground I suppose. And its so quick, you know what its like..

E: Yeah the turnaround..

S: They're throwing lines at you as you run down to the set to try and
keep things topical.

E: Thats right...

S: So yeah, it was a great experience, but I did miss my singing.

E: I was going to say, did you always want though, although that was a
lovely experience, did you always want to be doing musical theatre.

S: Yeah, I absolutely love musicals.

Interview copyright BBC Radio 2.