Hello everyone... I have been a Tivo customer for a LONG time back to the first series 2 single tuner DVR, but now have a Series 3, and a Tivo HD. I am paying about $13 for one of them and $7 for the second one. I would like to replace the Series 3 with a Premiere XL4, and want to know my options. Can I just replace the Series 3 online with the Premiere and keep the same monthly pricing? I see that this DVR is available online and in store (Best Buy) for $350 ($50 off) right now, and I would love to have 4 tuners at my disposal on one device. Is this an option? Thanks!