You have written your treatment. Good. So now, you need to meet people, and to convince them that your idea is wonderful. Actually, to produce a tv show, you need a producer. And you must meet a producer, and convince him to put mone in your project!
How do you meet a producer?
Well, you have to go to as many parties as possible and contact many people. It may be difficult, and surely, you will have to insist, but don't be discouraged!