RUSH HD presents THE THIN LINE: Life on the Edge, an exhilarating hi-def documentary exploring downhill skiing -- the original extreme sport. Commissioned by RUSH HD from Jalbert Productions, the official production company of the U.S. Ski Team, this beautifully shot, adrenaline-fueled 90-minute film paints a picture of the people and places that have made this alpine discipline one of the world's most dangerous and thrilling sports. Featuring historical and contemporary stories along with stunning POV footage, THE THIN LINE: Life on the Edge includes in-depth interviews with top downhillers such as decorated Americans Bode Miller, Daron Rahlves and Picabo Street, legendary Austrian daredevil Franz Klammer and many more. The World Premiere of THE THIN LINE: Life on the Edge airs on Saturday. December 15 at 10:30pm ET/7:30pm PT/9:30C, on RUSH HD, and will air in the breathtaking clarity of high definition and 5.1 Dolby Digital surround sound. (TV-PG)