Filed under: HDTV, Home EntertainmentHi-def and DVRs go together like peanut butter and jelly, but even with all the great DVRs available today, none are perfect. TiVo offers the best overall user experience and features, but lacks a few fundamental features that most cable STBs have -- like VOD, for starters. Although this isn't TiVo's fault, when it comes down to figuring out what's right for your family, it really doesn't matter. During Tivo's earnings call yesterday, it was reaffirmed that TiVo is working one step closer to making the ultimate cable DVR by including two-way functionality us