If you have a serious interest in stand-up, I would highly recommend Stuart Goldsmith's podcast The Comedian's Comedian. He interviews a broad range of (mainly British) comedians, taking a deep dive into their writing process and stagecraft. The interviews with Jimmy Carr and Gary Delaney stand out as highlights for me, providing some absolutely revelatory insights into the art of making something funny. It can be a bit inside baseball at times, but that's not necessarily a bad thing.
Moran is famously press-shy. He's been on Marc Maron and Scroobius Pip's distraction pieces and is excellent in both, so I'd recommend listening to those.
I've read/watched quite a few breakdowns of his acts, but haven't been able to find anything by/with him discussing his act, so I'll definitely look into those.
Now that you mention it all of the preroll interviews in his recorded acts do seem really forced... I could never tell if that was me reading him wrong, or if he was keeping up the "I don't care" character.
http://www.comedianscomedian.com/podcasts/
http://www.comedianscomedian.com/164-jimmy-carr-part-one-of-...
http://www.comedianscomedian.com/67-gary-delaney-live/