Texas...I think you're correct that it has to do with the new sat. I'm guessing but maybe they added a table for 99ca and it ran into a glitch with the 100 boxes. I realize they're old. I just wish they had not changed the ota tuner in later models. Also Texas, as I posted elsewhere a couple of weeks ago, 720, the MLB multichannel is not compatible with the 100 boxes. The blue lines are NOT where they should be, so you're not able to select the game you want to watch by squaring it, you have to enter the channel # directly.