DAEJEON, South Korea (AFP) - A robot on Sunday acted as master of ceremonies at a South Korean wedding in what its creators claimed as a world first. Tiro the robot assisted at the wedding of Seok Gyeong-Jae, one of the engineers who designed it, and his bride at Daejeon, 130 kilometres (78 miles) south of Seoul. "This is Tiro, master of ceremonies for today's wedding," the robot -- featuring a cone-shaped body, two arms and a dark-glassed face with eyes and a mouth of flashing lights -- said in front of smiling guests. In a male voice, the robot...