TiVo has just scored a major deal extension for its voice remotes at giant Japanese telco KDDI, in the same week that it rolled out a new personalized discovery platform. The newly merged TiVo-Rovi outfit has created a well respected company with some genuinely valuable intellectual property at its disposal, yet its seemingly successful trajectory has not done its share price any favors, slumping around 4% from this time last week. In fact, its share price has never recovered since the merger closed last September. KDDI is deploying the G-Guide HTML on its cable set tops, reaching a base of 5.3 million subscribers, to build on its existing deployment of the G-Guide on KDDI’s IPTV set tops, which it rolled…