Watch Series: Scrapheap Challenge Released in (1998) - Season 11 produced by UK, USA, The TV Series categorized in Action, Adventure, Game Show, Reality-TV, and content rating 1h with duration 60 min broadcasted as these networks Channel 4, Streamed at Putlocker Scrapheap Challenge is an engineering game show produced by RDF Media and broadcast on Channel 4 in the United Kingdom. In the show, teams of contestants had 10 hours in which to build a working machine that could do a specific task, using materials available in a scrapheap. The format was exported to the United States, where it was known as Junkyard Wars. The US show was also produced by RDF Media, and was originally shown on The Learning Channel. Repeats have aired on another Discovery network, the Science Channel. - Season 11