Can anyone confirm that a Cisco TA will light up at least one or two LEDs when powered up? Or does it really stay 'lights out' all the time, regardless of state when plugged into power?
When you plug in the power cord, the tuning adapter LED blinks while the TA is booting up and then goes solid once it is finished. If the LED isn't coming on at all, then it is nothing more than a doorstop at this point.
The lack of a TA shouldn't have any negative effects on her recordings on the channels she can view without the TA. In fact, my leading cause of tuning/recording failures is due to the crappy Cisco TA that TWC has me using. If she gets all the channels she wants without connecting the TA, then I strongly suggest you don't connect it at all, as it is likely to cause more problems than it solves.
Ok, so if she's already seeing a channel then it won't get switched out? Or, as I'm assuming, it might and it was just happenstance that the channel was viewable at that particular moment? I'm guessing neither, as your "no TA, no SDV" note would apply.
TWC does not regularly change which channels are SDV and which are not. The last time they did for me was almost a year ago when they did a massive realignment of all their channel numbers. In general, the most popular/most watched channels won't be SDV, which includes all of the broadcast networks and basic cable channels. The channels that tend to be SDV are highly specialized/low viewership channels, premium channels, and foreign language channels.
Is there a list anywhere that breaks down what does or doesn't get put on the SDV tier?
If you can view the channel with just a CableCard and no TA, then it is not a SDV channel. If it requires a properly working TA to view, then it is a SDV channel. So any channel she has been able to view up until this point without a TA is not a SDV channel.
TWC did indeed say you can't get any without the TA. This was a back-and-forth process where I went to the office, got a CableCard and watched the clerk "use the computer to activate it". Back at the house it wasn't working, so I called the 800 number. They took down the HostID and "activated the card" but still no video. At this point informing me I needed the TA to get anything at all. So, back I went and got one, meanwhile they noted the account showed no CableCard (that I'd just gotten an hour before). Right, "cue the circus music"... Back to the house, where I happen to notice it's actually getting channels... okaaaayyy.... whatever, I go to plug-in the TA, only to discover it was dead. Taking me to where we are now.
So she's got working cable, but might have recording issues (or she just might be 82 and confused, so... whatever).
They are just wrong if they told you you have to have a TA to view any channels at all. With a CableCard only, you can view all linear channels that are not SDV, which is probably well over 100 channels.