Watch This

On today's What to Watch: We look back on the career of Cheers and Look Who's Talking star Kirstie Alley, who died at 71 after a short battle with cancer. On the Winchesters fall finale, monster-hunting duo Mary and John find new info that could lead back to their fathers and help them save mankind. Monarch wraps up its first season with the Roman family trying to find some peace, but they won't get there without enduring some big drama first. Ryan Reynolds, Lizzo, and Shania Twain are being honored at the People's Choice Awards, hosted by Kenan Thompson and with nominees including Taylor Swift, Harry Styles, and Beyonce. Kimberly Dawn Guerrero, star of ION movie Dognapped: Hound for the Holidays, tells us what she's watching. Plus, Hollywood trivia and entertainment headlines, including GMA anchors Amy Robach and TJ Holmes temporarily taken off the air after romance disclosure, HBO cancels FBoy Island, Jeopardy reunites former Teen Tournament champs, and Neil Gaiman reveals which character will be in season