KET is, indeed, Kentucky Educational Television. In Kentucky, all of the state's PBS stations are run by a single entity. When I lived there I was involved in trying to keep Louisville's station independent, but we were not successful.
My documentary, Made and Bottled in Kentucky, was one of the first productions to receive a grant from the KET Fund for Independent Production, which also provided some of the funding for this project.
I haven't seen it and as far as I know, it was only broadcast in Kentucky.
The guy behind it is Kent Masterson Brown, a Lexington lawyer who has a side business called Witnessing History
, which has been cranking out historical books and videos. He is, apparently, a Civil War buff.
He also does policy analysis
for conservative think tanks.