TiVo released the 7.2 software a couple of months ago, and that introduced network Guided Setup, which completely eliminated the need for a phone line. However, the retail channel is still packed with pre-7.2 boxes. But there is a way to tell if you’ll need that phone line or not without opening the box and booting the TiVo:
There’s two ways to tell if the box contains the 7.2.1 update, which does not require a land line.
The first way is to look at the UPC label. If it’s marked “SS” in front of the UPC code then it contains the latest software version.
The second is to look at the text on the carton messaging around the phone line which will mention different requirements. The carton text reads:
You get: Instructions, TiVo Remote, Cables, TiVo DVR.
You’ll also need the easy-to-use TiVo service plus your existing phone line or broadband connection. You’ll need to activate and connect to the TiVo service through your existing phone line or via your existing wired/wireless home network* and broadband connection.
Remember, if you’re setting up a new unit on a network you need a supported adapter: http://www.tivo.com/adapters or http://www.tivo.com/getready