The Sentinel is a TV show on British national television from BBC1 with an average rating of 3.0 stars by TelevisionCatchUp.co.uk's visitors. We have 1 episodes of The Sentinel in our archive. The first episode of The Sentinel was broadcast in July, 2016. Did you miss an episode of The Sentinel but don't you wan't that to happen in the future? Please set an alarm and add The Sentinel to your favourites, so we can remind you by email when there's a new episode available to watch. For free!