^ I got tired of his jokes. Plus, I think he's running out of ideas for shows. A bunch of his original shows were quite informative and he made learning fun. But, it's grown a little weary and he's getting a little too boring and predictable.
Having said that, he does know his food and his foods chemistry. Thanks to him, we know the "why" is why foods complement or work well together. Also, we understand the chemistry behind them and why they do what they do....