Amazon.com (NASDAQ: AMZN) and NBC Universal, a unit of General Electric Co. (NYSE:GE), announced earlier today that much of the TV content from NBC Universal is now available on the new Amazon Unbox digital video download service.

Popular NBC shows now available include the series The Office, Heroes, and the comedy 30 Rock. Starting September 10, Amazon Unbox customers can download free and pre-show advances of network premiers of pilot episodes of NBC's new shows Bionic Woman, Chuck, Journeyman and Life. New episodes will be available on Amazon Unbox the day after they air on TV.

Amazon Unbox is actually almost a year old now from an "official" status. If you look at what has been happening out of Google Inc.'s (NASDAQ:GOOG) YouTube unit, this is just one more step along the route. Amazon and NBC Universal offer viewer a variety of content packages, and it is going to be interesting to see how this and all other PC-video initiatives pan out through time. So far, convergence has been a bust as much of the country (and world) has yet to migrate their TVs, music, movies, and computers.

Jon C. Ogg produces the Special Situation Investing Newsletter for 24/7 Wall St.; he does not own securities in the companies he covers.