Cylinder: There were some teething issues with the green-screen, actually.  The worst ones were with Darlan here, him being green and all...

Darlan: Yes, had some early drafts where I basically came out as a floating pair of eyes, didn't we.

We did.

And you might have noticed the cross-bar between Forkley's forks is missing in some episodes?

That's because it was originally green.  We realised somewhere around Episode 14 that it was an issue, so ever since then he's been starting each day with half an hour in a makeup chair getting it re-coloured to grey.