You'd pretty much be limited to recording only one thing at a time.You would be able to listen to a recorded program while recording another,at least with a Replay or Tivo.If you needed to record from all 3 sources at the same time,you would need 3 separate recording devices.The last I looked Replays are going relatively cheap on fleabay and you don't need to "subscribe "them anymore.
Thought about it. But now I'm thinking about going with just podcasts. It'd be the cheaper and simpler way to go. Plan to maybe get this setup in June. So thanks for your help!