Dowell, Ben (15 January 2016). "EastEnders repeat - where by will it be revealed when BBC3 goes off air? New channel W replacing Watch". Season 4, Serena and Ben. Season 4, Serena and Colin. In the 10th episode of Season 2, Norman has a flashback that confirms he did without a doubt slept with and then murdered her. Played for laughs (male scholar/female trainer) in an episode of Blossom.