The Unbox on TiVo service, which allows Amazon Unbox movies to played on TiVo's DVR units, has just received an important expansion to its abilities. The Associated Press writes that users can now order movies directly from their TiVos, complete with catalog searches using the remote control, and the choice of either renting or buying. While Unbox on TiVo has been available since March, the service previously required ordering from a computer, and then downloading to the TiVo separately. Only Series 2 and Series 3 TiVos are compatible.