Originally Posted by jtbell
I went to the Channels section in Settings, and found that my master channel list contains not only the "main" city's stations, but also stations from two other cities that I can get if I rotate the antenna. TiVo presumably decides this according to my ZIP code. The "main" city's stations are checked (which gives me guide listings for them), and the others are not. Does the channel scan simply check/uncheck boxes, or does it also enable me to tune the stations? To put it another way, if I check the box for one of my "other" stations, and rotate the antenna so I can receive it, will I actually get it?
Or do I have to do another channel scan which will presumably wipe out some of my current stations?
Every tuner I've used before has used the PSIP data in the RF channels that it actually finds a signal on, to build the table of virtual channels versus RF channels. TiVo apparently provides this table as part of the guide data downloaded via the Internet, based on your ZIP code. So in my case, even though the TiVo's tuner had not yet actually "seen" e.g. virtual channels 36.1 and 36.2 on RF channel 22, they were in the guide data for my ZIP code. After checking the boxes for 36.1 and 36.2 in Settings --> Channels --> Channel List, and rotating my antenna, I was able to tune to those channels and see their guide data.
I was worried that I'd be "stuck" with being able to tune and get guide data for only one city at a time. But it looks like I can get guide data for all the stations that I can actually receive at least semi-regularly. Now I'm a happy camper.
Of course, if a station changes its RF channel, I'll have to depend on TiVo to update its data, but that won't happen very often.