Into The Danger Zone Pearl, 9.30pm Stories about people who push their bodies to the limit, all in the name of gaining vital scientific knowledge. For seven days competitors in the Marathon of the Sands run a marathon every day across the Sahara. Monitoring the bodies of four competitors is sports physiologist Steve Myers, who is exploring the limits of the human body in this most extreme of tests. Love Shack Star World, 10pm In this new reality series, a single man and a single woman are introduced to members of the opposite sex while living in the ultimate bachelor pad, a mansion in southern California. As the contestants date different people they must engage in a variety of challenges designed to turn up the heat. At the end of each episode the original pair selects partners who stay in the house and are challenged by new singles next week.