TasteTV reports that per Amy Rosen of the National Post in Canada:
Jason Priestley and Terry David Mulligan do some swishing and swilling at various wine regions as co-hosts of Hollywood and Vines, a new show on StarTV. The Barenaked Ladies' Steven Page is a Canadian oenophile who owns a piece of Canada's Vines magazine. A handful of Canadian celebs are dipping into the wine business. It all raises the question: Is this a recipe for deliciousness or are they corking disaster? Amy Rosen investigates.
Jason Priestley's involvement in such a wine show is confirmed by Celeb Talk, Wine Expression, and TV Guide. There's a website for the program, which airs apparently now on the Travel Channel or StarTV.
By the way, you can watch Wine Expressions' own version of this type of show.