When RCN did the switch in my Chicago neighborhood in February, my TiVo HD cable card picked up the new channel arrangement immediately, but the TiVo itself still had the old channel lineup. However that was an easy problem to fix. I just navigated through the TiVo Central menu system like this: Messages & Settings Settings Channels Channel List At the bottom of the channel list page is the message "Press ENTER if this is the wrong Channel lineup". Pressing ENTER there led me through the channel lineup selection part of Guided Setup. After that everything was synchronized and the TiVo started fetching the program information for the new channel lineup. It didn't take days, it just took a couple hours for the TiVo to suck in all the programming data for two weeks of programming for all the many channels. After that everything was cool. I thought it was a fairly painless procedure.