Celebrity Cooking Showdown was hosted by a Canadian actor who was best known for his role as Jason Seaver on what television series?
Celebrity Cooking Showdown:  It was hosted by Alan Thicke. Alan Thicke: Alan Willis Thicke (born Alan Willis Jeffrey; March 1, 1947 – December 13, 2016) was a Canadian actor, songwriter, game and talk show host. Alan Thicke:  He was best known for his role as Jason Seaver, the father on the ABC television series "Growing Pains", which ran for seven seasons.
Growing Pains