Man vs wild, also called born survivor; bear grylls ultimate survival or colloquially as simply bear grylls in the united kingdom, is a survival television series hosted by by bear grylls on the discovery channel in the united kingdom, the series was originally shown on channel but later series were broadcast on discovery channel uk, the series was produced by british television production company diverse bristol. the show was first broadcast on 10 november 2006 after airing a pilot episode titles "The Rockies" on 10 march 2006 . in a special first aired on 2 june 2009, will ferrell joined Grylls on a survival trip to northern sweden .