Tne shows about the first world war are countless, but I selected a few that are, in my opinion, worth your attention
Lawrence of Arabia
The man who guided the arabic people in order to kick the Ottomans out of their territories
War Horse
A Steven Spielberg show about the horror of the situation for the animals during the world war, with at least a superb reconstitution of the battle of the Somme
PINKY BLINDERS
Not a TV show about the world war, but about those who survived. During the 8 seasons, the shadow of the conflict is completly present, almost acting like if it would be a caracter of its own.
All quiet in the western front
From the german novel written by Eric Maria Remarque