I was flipping through channels Sunday night and ran across this TV drama being shown on public television. From our friends at Wikipedia, it was a BBC production and released in 2015. It only ran for one season.
"The Crimson Field is a British period drama television series that was broadcast beginning on BBC One on 6 April 2014. The series shows the lives of medics and the patients at a fictional field hospital in France during the First World War."
I've seen two episodes so far and am disappointed that additional seasons weren't released.