Something Blue gave you a bit of a reality check, but he is correct. An "idea" is not enough. You have to be able to create scripts, well crafted with one-camera or three-camera stage settings in mind with enough detail to be interesting, but written to fit a fixed per-episode budget.
(I can have an idea for time-travel, or a infinite battery but if I cannot create a practical model, the idea is useless) You should also learn about "PILOT SEASON". This is a 1-2 month period in LA where 9 thousand (yes, 9 thousand or so) pilot TV shows are shot. Actor and Actor wanna-be's travel to LA, sleep on friends couches and go to audition after audition.
Even actors with HS or community play experience get parts to shoot pilots if they fit what the scripts & director are looking for. After the shows are created there is a big trade-show. TV channels (and now Hulu & Netflix & Amazon) show up, take copies of pilots and take them back.
They look at their budget, their lineup, the other guys line up and decide if they need a Comedy, Family Drama, hospital/lawyer/police procedural, etc., then they review the pilots. If they find something they want - they contact the production company (totally separate entities from the TV stations) and negotiate. If things work - they order 8, 12, 16 episodes.
In many cases these companies contact the original actors (who work for basic actors scale) and sign them up to work in the episodes. See how this works? SCREEN WRITERS I just read Felicia Day's book "You are never weird on the internet (almost)".
She states something I have heard over and over again: "Parking lot valets are the only people treated worse than Screen Writers in Hollywood." I could go to my local Starbucks right now and spot 1-4 people sitting in corners with laptops trying to work on their screen plays. You with your idea and not even a script/screen play are below these people in the hierarchy of things.
YOUTUBE TO THE RESCUE Some people have tried to go around this system by self-publishing their stories on YouTube. Try fleshing out your idea into a script, then try producing a garage-version pilot and start a YouTube channel. Go to YouTube and search for "The Guild".
It helped launch Felica Day from an actress into a writer, producer and she runs a multi-million dollar YouTube channel these days. All from an idea....
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.