The tech told me that in his two years installing, this was his 4th TiVo related service call. The way I understand it is they work in teams. For anyone arranging an install, see if you can leave a note or remark for your tech when making an appointment. Not sure if they can change installers, but you should give them a heads up to arrive early in the appointment or see if they can connect with a team member that is more familiar. My stores didn't carry either the card or TA. The tech told me there is a warehouse locally, and they carry a couple of cards, and NO TAs there if they are bad. Sounds like each market is different. I wouldn't call it the silver channels, more like the secondary channels, its the SDV channels. FXX was one that didn't work for me, (that's on the lowest tier), but FX did. HBO main worked, but the rest of the HBOs didn't. Same with showtime. Then there was a sports channel that wasn't working, (cbs sports, or FS1, I don't recall). I learned that Spectrum support has a "TiVo department". Not sure if its the cablecard section or not. The tech got bounced around three times, then they said they were the Tivo department. I would try just asking for that in the future, and see if they will transfer you to that. After they thought they completed their end, Spectrum then transferred the tech and I to Tivo. Not sure if it was the main number or not though.