Real, Fake or Unknown

Three death-defying videos are under the microscope. A hoverboarder teeters high above Dubai. A man dices with death under a train. A snowboarder has a grizzly encounter with a bear. Are they real?

This episode puts some of the web's most-watched animal clips under the microscope, including extreme shepherding, a vengeful lion and a cradle-snatching eagle. Are they real?

From jet-powered hoverboards to flame-retardant goo, this episode examines viral promotional videos. Which are real and which are fake? And do we know when we're being targeted?

This episode examines online clips of crazy skills. From ocean surfing motorbiking to trick-shot archery, a skydiving game of catch, and superhuman baseball batting, which are real and which are fake?

This episode investigates illusions. Can spinning an upturned glass of water really make it defy gravity? Did a performance group play a deadly game of ping pong with kitchen knives? Is a clip that shows the ground liquefying real? Can a subwoofer sound system pump out bass so powerful that it turns a car to jelly? Are these clips real or fake?

Some viral clips grab headlines around the world, but that doesn't mean they're all real. A futuristic head shave that threatens every barber shop on the planet, an apparently superhuman remote helicopter, the world's most idiotic selfie and a city in the sky are in the spotlight in this episode. Are these clips real or fake?