I’ve owned multiple tablos for over 4 years. Before purchasing the first unit I read all of the material on www.tablotv.com including the user manual.
It was very obvious that if you wanted the guide an internet connection was needed. A representative from Gracenotes wasn’t hand delivering a guide update for offline update.
And in many metropolitan areas the PSIP data indicating the actual shows can be flawed.
And I never read one word about access control.