Who I have the same questioned this topic

A number of channels will not allow us to watch live tv through the Fios TV app.  Several channels have the following error message:  “This channel is only available to watch live when connected to your Fios Wi-Fi router”.  We are at home on our home network.  Channels with this problem include CBS, WETA, Telemundo, MPT, WGN, ABC.

Help would be appreciated.  Tech support chat through Twitter claims streaming live tv is only available with enhanced DVR service.  We don’t think this is correct.