OTA ONLY and Loving It!
You do not have to do anything at all to continue watching those recorded shows. If you can play them today, you will still be able to play them when the evil cable company is gone.1. What should I do, how should I move connections so I can watch those old shows?
If you want to try and use an antenna with that S3, then you do need to re-run guided setup, but that won't affect your existing recordings, nor does it require any changes in how your TiVo is connected to your TV,