This episode was "The Hunt" written by Earl Hamner Jr, who also wrote and was the narrator for "The Waltons". It was the first of 8 episodes he would write for the show. I consider him to be the most underrated of all the TZ writers.
That’s a terrific episode – the series had a lot of fine moments beyond the (admittedly great) ‘Boo!’ stories. Their Christmas show starring Art Carney is a favorite of mine.