By Olivia Wheeler Ant and Dec’s Saturday Night Takeaway viewers were left in tears during the latest episode as a “hero” guest was surprised in the audience. As part of the show, hosts Ant and Dec surprise members in the audience and at home with a Takeaway Getaway. During the latest episode, Ant surprised a guest member called Mark King in the audience. Ant explained: “I’m coming to you, Mark King. Mark here started the Oliver King foundation in memory of his son, Oliver, who sadly passed away after a cardiac arrest at only 12 years old. “Thanks to Mark’s tireless campaigning over the last te…