Unknown is a TV show on British national television from ITV4 with an average rating of 3.0 stars by TelevisionCatchUp.co.uk's visitors. We have 1 episodes of Unknown in our archive. The first episode of Unknown was broadcast in January, 2018. Did you miss an episode of Unknown but don't you wan't that to happen in the future? Please set an alarm and add Unknown to your favourites, so we can remind you by email when there's a new episode available to watch. For free!