Japan's Top Inventions - Season 6 Episode 3

The fascinating stories and secrets behind hit Japanese products, plus parts and machines that boast the top share of niche markets. In the first half: the story behind online karaoke services which allow the latest songs to be transmitted over the net and sparked a karaoke boom in Japan. In the second half: umbrella bagging machines which allow people to easily cover a wet umbrella with a plastic bag.