One of the stations in the Chicago market broadcasts on a different frequency than the TiVo expects. If I try to use the market-defined channel in my channel list, I get guide data but no programming. If I used the scanned version on the right frequency, I get programming but no guide information. Is there anyway for me to fix this on the TiVo or will a new lineup have to be worked by TiVo and sent out as some sort of update? Thanks.