- You can start an avalanche by yodeling: busted
- Your tongue can get stuck to a cold metal pole: confirmed
- It's better to drive in reverse on ice: busted. You do have better traction with a front-wheel drive car, but you're driving in reverse, which makes the car harder to control.
The avalanche myth was a chance for Adam and Jamie to showcase the artillery of the Colorado ski patrol. After testing with a yodeler, megaphone, bull-whip, and machine gun, they were able to get to the real stuff. They started with an air cannon and gradually worked up to tossing dynamite out the window of a helicopter. There was really no myth being tested at this point, but that's not the point, is it?
The tongue-sticking myth was fun for its grossness -- it featured Grant "re-animating" a pig tongue -- but the myth itself was an obvious non-myth.
The reverse-driving myth, even if busted, offers some useful snow advise: they got 40% more traction driving in reverse with a front-wheel drive car. You probably won't be able to use this driving around South Lake Tahoe, but you can probably put it to good use getting out of the driveway.