I previously owned DirecTV Tivo units, but have switched to cable. I just bought the base Premiere model earlier this year. It's okay, more recording glitches than I'd like and not very snappy, but it beats the cable co's DVR. I've been reading about the Roamio and just got an offer to upgrade and transfer service. I'm weighing the options between switching to the Roamio vs. keeping the Premiere and adding an HDHomerun or Ceton network tuner for an HTPC with WMC (which I already have). Can I stream live TV directly to a PC and change channels or watch a recording while someone else is watching on the main unit without a performance hit on either end? And without a Tivo Stream box? I'm interested in the Roamio if it can really feed a full live TV and DVR experience to two rooms/TVs at the same time from a single M-card without glitches or performance lag on either end. I'd also like to hear if the Roamio is generally more reliable than the Premiere, in terms of fewer missed recordings and random reboots.