I don't know of any boxes that Tivo can control (yet). It would seem Tivo will need to add support for such boxes pretty soon though.
The obvious choice (IMO) is to get a TivoHD and transfer your service from the S2 to it. It will do basic cable and OTA out of the box.
The obvious choice (IMO) is to get a TivoHD and transfer your service from the S2 to it. It will do basic cable and OTA out of the box.