Do new shows even get a chance anymore?

I had only seen one episode of this show, and it was just alright to me. But the thing that stands out to me about all of this is that the show had barely anytime to gain a following. Do networks even try to give new shows a chance anymore? It like, if you don't prove you're absolutely amazing in a mere 6 episodes, then you're done. Most shows can't even get their original premise out in 6 episodes. It's just too difficult. I think networks should have to give new shows at least 20 episodes to prove themselves.