The Hearty Boys. I know that for a while their show was on one night a week at 3am or so. They're still catering. I actually saw them do a cooking demo at the Family Farmed Expo back in March. They made Red Wattle Pork belly with butternut squash spaetzle. It was delicious, especially the spaetzle (I only had a tiny taste of the pork belly, since I had two tiny moochers with me and they polished it off before I could have a taste.) They were pretty knowledgeable and entertaining, too. It was a good demo.
They made a cocktail, too (but I missed some of that part of the demo so I can't really describe it.)
A Mmmmmmmoonie plate special!
(There were some Top Chef demos there, too. Stephanie from the Chicago season and Dale from the Miami season (and All-Stars) both did cooking demos, too. I missed Stephanie's demo (but saw her afterward) but I caught Dale's demo.)