Iconic director ROBERT CLOUSE did one episode of this series...
In 1971, director Robert Clouse did an episode called "GENTLE OAKS" in which John Carradine was one of the guest actors.
A couple of years after this, Clouse directed what many consider the greatest martial arts film ever made: ENTER THE DRAGON (Bruce Lee's only English-speaking film and final role)
He became specialized in Hong Kong martial arts films (although, he also directed other different types of movies) and had a career of over two decades.
It's interesting to see how some of the big Hollywood directors started from television.
This is a clear example!