With Akihabara, mobile TV that works and games like this, does Japan really need another nicety to remind us of how awesome it is? Starting this week, Yahoo Japan has started to deliver free video services to loads of Sharp AQUOS HDTVs. The so-called Douga Channel currently offers some 3,000 videos gratis, and absolutely no member registration is required to tap in. At least initially, the service will target Sharp's AQUOS DS6 family of products, which are equipped with a revised Shar