Hey all, I got a Premiere 4 to replace my Premiere so I can record 4 shows at once instead of 2. I have an M-card which should support it based on all the research I've done including tickets with both Comcast and TiVo. I won't bore you with the details of the long drawn-out dialogs with both, but in a nutshell, Comcast claims they re-paired to support 4 tuners, and TiVo said they didn't based on a support doc they sent. I believe the latter. A Comcast rep came out today and said in my area, M-Tuners only support 2 tuners. TiVo support said they have never heard of such a thing - that "quad tuning being supported by Comcast in one area and not the other. That's just simply not true." I'm in northern Indiana. Have any of you had issues in your area with Comcast only supporting 2 tuners with an M-Card?