This is a video from a call-in show on cable access in Austin about atheism.
One of the hosts here, Matt Dillahunty, calmly and reasonably has a long discussion with a caller who is trying to make the point that atheism is a state of faith. He really clearly lays it all out… the difference between belief and knowledge, the different "types" of atheism.
And the call also engages in reasoned discourse. Both are polite… until the very end when the theist caller gets a little frustrated.