New to me Roamio Pro ?

Received Ebay purchase and successfully transferred All-In service with TiVo. Ran pre-cablecard setup successfully on device and connected to Frontier Fios network router which I understood would give me access to "basic channels " before installing cablecard.

However, guide still shows channel lineup from previous owners Xfinity lineup which obviously I can't access.

Have I missed a step?

New to me Roamio Pro ?