Content from NBC Universal was officially removed from iTunes Store in the US this weekend.

The removal of these shows - including the US version of The Office and offerings from a range of NBC-owned affiliates - follows a recent breakdown in negotiations between Apple and NBC Universal.

Italian-language website setteB.IT notes that some shows that are broadcast on NBC in the US remain available on the US iTunes Store because they are produced by other studios, rather than NBC Universal.

Behind the failed relationship stands the now classic argument on the part of the studio that it wanted to raise prices for sales of its content. Apple did not agree, and a stalemate developed, leading the studio to withdraw its content.

The studio plans to launch its own hulu service. For Windows systems only, this will allow users to download shows for just seven days after they air, and the video files will disappear from a user's drive 48-hours after they are first watched. The video won't be transferable to portable devices. A Mac version of the service is promised for next year.

“We are disappointed to see NBC leave iTunes because we would not agree to their dramatic price increase,” said Eddy Cue, Apple’s vice president of iTunes when discussing the matter in September. “We hope they will change their minds and offer their TV shows to the tens of millions of iTunes customers.”