Http://dtv.gov/maps 2021 Guide

If you can access the main dtv.gov domain later, typical features of such a map might include:

The maps are color-coded to indicate signal strength intensity, helping you make informed decisions about antenna placement and equipment needs. http://dtv.gov/maps

Just type in an address to see what channels are available over the air in that area. It’s great for figuring out where to point an antenna. If you can access the main dtv

"DTV Transition and the FCC's Digital Television Map" Source: FCC, Media Bureau Publication Date: 2009 Media Bureau Publication Date: 2009