The viewers will encounter outrageous footage from around the globe: a one-wheeled motorbike in the United States, a Brazilian man who can hold his breath for more than 20 minutes, tiny helicopters that can lift a woman in Germany and the Finnish man who can fly with his own rocket boots. You Have Been Warned, Starts 1 May 7 PM, only on Discovery Channel.—Vivek

You Have Been Warned is a fast-paced countdown of the world's top 20 YouTube videos featuring homemade science stunts and experiments. Each episode focuses on a particular science theme and features the cleverest, funniest, most daring, or just downright bizarre clips, along with an explanation and breakdown from some of the world's best science experts. With the help of amazing storytelling graphics, the expert panel will explain the what, how and why of the science that made these clips possible.—Vivek