There are two maps you can select from the following link:
http://www.districtgov.org/yourdistr...map/index.aspx
See the two links to the right of "Download detailed map:". You can zoom in on both to see all the detail I believe you're looking for.
The Historic section is the portion of TV that's north/east of 27/441 on the "North of 466" map.
Unfortunately, the map that used to be here that showed the new areas south of 466A was removed for unknown reasons sometime back.
Hope that helps!
Bill