Advertisements My TA went bad a few months ago, so TWC brought a "new" TA. It worked for a few hours after the techs left, and then it started getting the "channel not available" message. I rebooted it and it worked for a few days and then started dropping channels again. The TA then got gradually worse and needed to be rebooted every day and then, every few hours. The TWC techs came to the house again and checked all of the wiring and signal levels and pronounced everything ok. I finally gave up on the local guys and called the TWC National Support Desk, and they were able to run diagnostics on their end and they determined that the TA was bad. I went to the local TWC store and exchanged the TA for a new one, hooked it up and it hasn't caused any issues now for two weeks. I think the tech that installed the TA had an old one on his truck and he just used it to replace the TA that originally failed. The TWC National Support techs can run you through the TA diagnostics and determine if you have a signal or noise issue. In my experience, they know a lot more about the Tivo/TA combo than the local guys...most of which are clueless. The National Support Desk number that I used is...866-532-2598. Good luck!