So I bought a Premiere 750500 for $43 shipped. I thought about swapping the card from my Roamio but then rhought--"cabecards are cheap, I can use a 3rd". Well, not if its uo to Xfinity. 2nd tier customer support advised me to buy one at WalMart. She had no idea what a Teebo or a cablecard was. The original rep brought her on and she had another higher up on her line as well. Thats 3 people who could not manage to ship me a card. I will admit that these folks were at their homes and did not have access to ALL their reference materials. My rep sais "we use the HDMI cards now". Frightening when ya think about it. Will I have any luck at the cablecard hotline? Im gonna give it a try.