Man vs. Wild, also called Born Survivor: Bear Grylls, Ultimate Survival, Survival Game, or colloquially as simply Bear Grylls in the United Kingdom, is a survival television series hosted by Bear Grylls on the Discovery Channel. In the United Kingdom, the series was originally shown on Channel 4, but the show's later seasons were broadcast on Discovery Channel U.K. The series was produced by British television production company Diverse Bristol. The show was premiered on November 10, 2006, after airing a pilot episode titled "The Rockies" on March 10, 2006.