What happens next in this paragraph?

How to connect tivo to a wifi network
Ensure your tivo is compatible with wireless access.
Note that only series 2 tivo units are compatible. Note that any unit that is a directivo (i.e. a unit that acts as your directv control box) will not connect over the wireless network without heavy modification, because directv has disabled the usb ports.
Some companies will remove this block for you, but the service can be somewhat pricey. Visit the tivo website for a list of compatible usb wifi adapters.