**Warning: Contains spoilers for The Traitors season 4** The Traitors continues to go from strength to strength, with its fourth outing on BBC One pulling in impressive viewing figures. Last night’s episode (14th January), saw Faithful Harriet sacrifice her place in the game as she asked the other players to call her bluff amidst her belief that Rachel was a Traitor, something the audience know to be the truth. In a shocking twist in the confession room, in which Harriet and Matthew were given the opportunity to speak to the Traitors, Harriet revealed her real profession before declaring that she was sure Rachel was a Traitor, and nothing would stop her from coming for her. The following morning, Harriet didn’t hold back at breakfast or the roundtable. And viewers were certainly engaged, with the episode pulling in a peak audience of 8.1 million viewers, according to overnight ratings for BBC One. Rachel, Sam and Harriet in The Traitors season 4. BBC/Studio Lambert/Euan Cherry That is higher than the season 4 premiere’s overnight viewership, which brought in …