Read on his Twitter today that's he doing some narration for something, any idea what it is?

Not a clue I'm afraid, nothing been added to his IMDB page. Why don't you tweet him Saz and ask?

Could be some new comedy doc or something? He'll probably tweet it when whatever it is airs.

I hoped it was Buddy and Elvis, although that's not strictly narration so probably not. Hope he does more of those though, the pilot was brilliant.