Chain Reaction is an American game show, where one word leads to another, and the right word leads to loads of cash. There have been three incarnations of the series: Bill Cullen hosted the original series on NBC from January 14, 1980-June 20, 1980 save for two weeks, when Geoff Edwards subbed while Cullen sub-hosted Password Plus. The second version aired on the USA cable network from September 29, 1986 to December 27, 1991 and was hosted by Blake Emmons and later Edwards. Dylan Lane currently hosts a version airing on GSN, which premiered on August 1, 2006. It currently airs Tuesdays through Saturdays at 10:00 p.m. ET. The series was created by Bob Stewart.