You can watch anytime at least the first 20 minutes. I just wanted to give a counter example to the first paragraph of the article which describe him like an opaque person who doesn't listen. I particularly like this debate because it shows he can have a decent conversation with a well known atheist and he actually listens to him. That's why I find the first paragraph really off which makes me having some doubts about the whole article. But I will read it nevertheless.