I met up with Rob Hodge at the Nashville Civil War Relic show last year, and bought their Battle of Franklin documentary. I also just purchased their Chickamauga Documentary, but find the Franklin one much better done. I know some of the participants in the Chickamauga film.
I think they do best when they forgo the big “mainstream” events, and work with smaller segments like this Nat Geo film…you can control the uniform/equipage standards better. (IMHO)