Originally Posted by ThAbtO
You would need to have the Tivo brand Wireless G adapter to connect to the hotspot.
The official TiVo adapter is the only USB-based option (because the DVR lacks drivers for other USB Wi-Fi adapters), but any Ethernet-based Wi-Fi adapter (example)
or Wi-Fi router with a "bridge" mode should work, provided that it supports whatever security protocol the hotspot is set up to use (ideally WPA2).
Used routers running DD-WRT or Tomato firmware (example)
are affordable and generally reliable.