undoubtedly my favorite was the rocket powered chevy they ran by remote across the desert. I think it was the premier episode. I'd have paid money to be in the passenger side of that car. still would.
the shark and the exploding airtank I still think was tested incorrectly for numerous reasons. Jaws was on tv the other night and I popped in just as Roy was blasting away at the tank. I noted one or two things I didnt see taken into consideration during their tests...but thats half the fun of the show is debunking the debunkers.
the exploding cement truck was unbelieveable. hands down these two have the best job on the planet (IMO)