Can I use EyeTV Go without an internet connection?

Yes.  EyeTV Go sends a live TV signal straight to your Mac or PC, from a ground-based transmission tower.

An internet connection is not required to receive TV signals.  The DTT (Freeview or DVB-T) signals are solely received via the antenna/aerial attached to the EyeTV Go.

Acquiring Program Guide data may require an internet connection, depending on which service you choose.