I wouldn't say that there isn't ever 1 channel beyond
OTA, but typically when there is it is just a small gift. Here, basic cable are the broadcast local channels, the public access channels, and I think Style. That's it. And Style isn't promised as as part of the basic cable tier. They just turn it on for those who find it, but they can take it away any time they want because they say that expanded basic is required to receive it.
Why would anyone subscribe to cable for basic cable at $120 per year? Typically it is because they cannot get satisfactory reception from an antenna.