There is a difference between transferring recordings and streaming recordings. As was mentioned, only Premieres and above can stream and that streaming works in spite of the copy protection on some channels. All Tivos, except S1 boxes, are capable of transferring recordings that are not copy protected. Once you begin the transfer, you can start watching the recording on the Tivo that is receiving it. Depending on you network speed and the age of the Tivo, you may be able to watch it in real time.
"I'm just one story in a two story town." Bon Jovi