c3 and kokishin.
As expected, without the cable card in the Roamio, I could not view any cable channels.
I moved the M-Card from the premier to the new Roamio, and once it initialized, I was able to see the Digital Starter channels.
But Digital OnDemand was not available.
Once I called to have it "paired", Digital OnDemand was available.
I have transferred all of my recordings off the Premier and onto the Roamio.
Now I am getting used to having 6 tuners. No more having to worry about overlapping shows!
Thanks again for your advice.