Your suggestion to focus on different regions for each episode has been well-received at the TV studio.
The location scout needs guidance on finding appropriate filming locations. What kinds of regions did you have in mind? Political? Cultural? How many episodes should be planned?
You consider the various ways to divide the country into regions. Perhaps physical regions would be most interesting. That approach might have the camera crew scaling mountains one day. The next day, they might be navigating swamps. The United States shares borders with Canada to the north and Mexico to the south, and many regions extend beyond these national boundaries. There are numerous factors to consider.