Zap2it reports that the first four Season 4 episodes of The Office will each run an hour long:
The network announced Monday that the comedy’s season premiere on Thursday, Sept. 27 would be an hour long. Later in the day, though, executive producer Greg Daniels noted that the show would run long for its first four weeks, eating up four of the five extra half-hours NBC trumpeted as a rerun-busting strategy at May’s upfronts.