Thursdays at 10pm
Building enormous wind turbines, dams and rockets is hard enough, but when they break, somebody has to fix them. In this series, that somebody is Riley, the handyman who can get the whole Columbia River flowing again. So watch in wonder as he fits a new fan (on a 67m wind turbine) and changes the locks (on the John Day Dam in Oregon). Then it’s underwater repairs to a cargo ship, replacing a 50-tonne rudder. And no, it wasn’t limescale that was the problem.