Cash Cab is a Canadian game show produced by Castlewood Productions that began airing on September 10, 2008 on Discovery Channel and Discovery HD. It is hosted by comedian Adam Growe. The game show airs in Canada instead of the American version of the series, which airs on the affiliated US Discovery Channel network. Cash Cab is the English version of the Cash Cab franchise available in Canada; the French version is called Taxi Payant, and airs on V.