Supernatural Midseason Checkup December 28, 2008 News Click here for The CW Source's 'Supernatural Midseason Checkup: What Works, What Needs Work'. 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