I have been with Tivo for many years (Series 2/3/Roamio) and just purchased a Bolt VOX. I received this email today and sort of got taken off guard. "To get set up as quickly as possible, we recommend calling your cable provider to order a CableCARD™ now. Ask for five CableCARDs in case one doesn't connect to the BOLT on the first try. They can be finicky." Is this for real ?? Is there a BOLT/Cable card problem ? PS: I am on Xfinity for cable.