Hello TiVo experts. I looked all over the internet and could not find my exact situation so here goes. Currently I have Comcast and the eat all my $$ package. I figured hey, to save money I will get TiVo and be done with it. I learned that there is a bit more to this. I will tell you what I want and will then tell you what I have and hopefully you all can fill in the blanks. My ideal setup is to have an HDTV antennae for local channels and economy cable for my kids (disney). I purchased the TiVo premiere box for the dual tuners and antennae capability. What is really confusing me is Will the xfinity dc50xu work with my TiVo box? Will I still need a cable card or mcard? I really feel that I am close but I cannot get my mind over this hump. any help would be appreciated.