Wow. That's very interesting.
From an article I read, it appears this just happened with TWC's update (2.0 - July 7) to the App Store app. If you try to run the new update on the iPad, you get this:
“TWCable TV is not supported on “jailbroken†devices.
Please restore your iPad to factory defaults, then reinstall TWCable TVâ€
So, yeah, until/unless a fix is made, if you want to continue to use an already downloaded "TWCable TV" app - don't upgrade to version 2.0.
Marilyn
P.S. Very interesting, speculative articles on the web as to why TWC is doing this. I'd keep track of this...