Ratings for Supernatural’s April 6 episode April 7, 2017 News, News Supernatural’s ‘The British Invasion’ received a 0.5/2 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