Yes, it will work without an internet connection.<p>I bought a Roamio OTA for my mother-in-law, who has no internet.  I set it up at my place (it usually wants to upgrade to latest firmware over wifi when you unbox it), scanned for the OTA channels, then I took it to her place and wired it up.<p>The operation without monthly activation is bare-bones.  I mean, you don&#x27;t even get channel or station names.  But you can tune to prescanned OTA channels and watch tv and pause it live.