Series one of this BBC sitcom premiered back in 2019, and this year it returned for a second. The show follows a collection of ghosts from different historical periods haunting a country house that just so happens to be newly inhabited. Spooky. It's already been too long since Ghosts was on our TV screen and luckily, the show's making a return just in time for Christmas. The Christmas special will be airing on 23rd Dec. on BBC One.