Expand the Recording Capacity of your Scientific Atlanta Explorer 8300HD DVR

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I used Rocpro 850 3.5" 750GB Quad Interface Hard Drive - 7200rpm

To install the drive:

1. Turn off the DVR (hit the power button on the front of the unit)
2. Connect the eSATA cable to the drive and to the DVR (the eSATA connection is on the back)
3. Turn on the drive (if it has a power switch; otherwise just plug it in)
4. Turn on the DVR. At this point, you will be prompted by the DVR on your TV that a new drive has been attached and asked if you want to format the drive. Indicate "Yes" by hitting the yellow A (triangular) button on the DVR remote. A message will come up stating that the drive is being formatted. After a few minutes, the message will disappear and you're all set.

Check DVR capacity before and after to note the difference!