After the CableCARDs are sucessfully installed and you are getting all the channels. If the cards are properly authorized, you can see all the channels in the test channel menu (off CableCARD menu) regardless of what the Tivo guide data is. The newer Motorola cards have serial numbers that start with NG. Yes, dispatch needs the serial number and no, it's not displayed on any of the CableCARD info screens. The installer should be smart enough to write down the serial numbers on the work order BEFORE he installs the cards. If they don't have the serial number info, you'll have to anyway. Good except for a couple things: - No need to go to the network screen. - If the cards are freshly initalized, run test channels BEFORE you looks at the Conditional Access screen - Watch for the 161-4 error message that will indicate the head end is talking to the cable card.