I have a brand new Roamio, and a brand new internal HD. Should I swap in the new HD before I even power up the device? Or run through the whole set-up on the existing default drive first before replacing it? Not sure if it mattered, if there was any value to going through a full power cycle with the new unit, or even if there was benefit to starting fresh with the intended larger drive from the first power-up. Thx.