Just returned to Verizon and was frustrated that my guide showed EVERY channel whether I was subscribed to it or not. Spent time researching solutions and called Technical Support to no avail. Finally after much grumbling and experimenting, I managed to get my guide to cooperate:
Press "Menu" button on your Verizon remote
Go to "Settings"
Go to "System"
Go to "Favorite Channels"
Go to "Favorites 1"
Go to "Add Subscribed Channels" and press "OK"
Press left arrow on Verizon remote until get back to "System"
Go to "Television"
Go to "Last Viewed Guide State"
Go to "Enable" and press Ok
Press "Exit" button on Verizon remote and check your guide to double-check that only your subscribed channels show up
Hope this helps 😄
PS - Originally I had just a regular set box for my TV, but upgraded to a DVR after one week....don't know if that made a difference.