It's pretty great.
I've got some on tape when I need a shot of AbEx/Pop history.
The non-painting ones are usually interesting also...cool profiles and usually in-depth.
Nova is good too...a quality program each and every week.
I saw this one thing on another PBS show recently about the dogfight over Guadacanal that was very engaging. PBS used to have this series in the '80s called
Alive from Off Center that was the greatest.