User blog comment:Sockstar1/iCarly Filming Timeline/@comment-3174012-20110614083615/@comment-2032682-20110614085504

I believe Michelle Obama would only need one day or even a half-day to film her scene/s. They were already filming an episode (the 4x18 episode) on last Thursday and Friday. My guess is they suspended filming on that episode for 1 day to do the stuff with Michelle Obama, and tomorrow and wed they will complete filming on that episode.

ILose My Mind is 402 because it was filmed second. It is therefore the 402 production code. It will air as 4x14.

Production code is separate to air code. Last season's episodes like iOMG were all "3x**" codes, but this season is a new production season, hence why they have 4x codes.

The cute nerd was written about in an article about 4x05 (4x18 possible airing code).