I haven't heard about him before until you mentioned. But I do some search on the Internet and Youtube. :) He is pretty amazing, going in every area of Vietnam to explore the cuisine. It is great to hear some Vietnamese speaking again.
Sometimes, there is some Vietnamese words and terms that I could not explain throughly into English, with the help of Luke, it should be easier.
I will keep eyes on his show. Hey, he is in MasterChef Australia too, wow! There is also a Vietnamese Chef that had won Top Chef America, season 3 I think, Hung Huynh. He is great, too, but his cooking and his performance in the show was a bit influenced by French. I hoped to see more Vietnamese cooking, but anyhow.