Board Thread:FAQs/@comment-24038268-20130929234857/@comment-24038268-20130930001217

I'm pretty sure that they make at least some episodes in advance, or at least start them early. I read somewhere that Monty barely finished episode 8 in time for the release; if that's the case, then the normal episodes probably don't take one week to finish. Voice recording, maybe done over the week. The animation, probably longer. It's said that Monty doesn't sleep as it is, so if he made a 5-minute episode, start-to-finish, while barely getting any sleep, then it would certainly take him longer to do an episode around twice that length.

Also, I'm pretty sure any anime/animation studio that makes episodes has the episodes made at least a little bit before their release.