Ratings for Supernatural’s ‘Dark Dynasty’ May 7, 2015 News Supernatural’s ‘Dark Dynasty’ received a 0.7 rating with 1.58 million viewers. SOURCE Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window) Related