Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
It just makes more sense for the provider to store everything and stream it when you want it and be able to burn it off when wanted for archival purposes. If it were a movie or series maybe they would just mail you the DVD when you wanted to keep it.
Apple or Tivo could manage this much data easily. I agree with Eric on the usablity of the iPod and its thosands of songs. Maybe they will take a stab at in 2006. Unfortunatly the real challenge is the licensing not the technology. I hope Apple can do for Video what they have done for Music.