SPOILER WARNING! E! Online got a chance to chat with The Office’s Co-Executive Producer Kent Zbornak about Season 4:
I heard that the first four episodes are the one-hour episodes.
That is correct, and they will air back-to-back. Starting Sept. 29, our first hour will air, and then the following Thursdays our other three hours will air.
Link: Office Scoop — See What’s in Store for Pam and Jim …