Although TiVo and ReplayTV were the first DVRs on the market, Microsoft's software actually powered the DISHPlayer Satellite DVR in late 1999. So here we are over 10 years later and while TiVo and Microsoft took different approaches to the same space, of the three original DVR software companies, they're the only two left. Which is the bigger success depends on your perspective, because while TiVo has the mind share (and sold more consumer branded products) Microsoft's technology is present in many other brand DVRs, like Verizon's FiOS DVR, and AT&T's U-Verse (which is built on Microsoft's Mediaroom platform). But our perspective of success is based on the user interf
