Feature I'd like: Channel Mapping

Since all channels are basically "Virtual" now in terms of channel number, wouldn't it be great if Tivo offered a feature where a user could map any channel to whatever channel number they wanted to? My current cable system has a channel lineup that just simply makes no sense. It's been very difficult to learn the numbers since everything is so scattered about.

I'd love to be able to map the channels I like to the positions/numbers on the "Dial" that make sense to me. Anyone else feel the same?