The International Robotics Exhibition is underway in Tokyo this week, with 130,000 visitors expected to attend the world's largest robotics fair. This Way Up technology correspondent Peter Griffin's been roaming the exhibition halls to check out the latest robots, from aged care assistants and exoskeletons to virtual-reality controlled robots and hospital bots. We also discuss Sky TV's controversial decision to sue 4 local internet service providers over their alleged role in promoting the spread of illegally downloaded content.