You use the same amount of electricity no matter what you do, PTAT on or off, unless you physically unplug the the Hopper. It is always on, and uses very little electricity, anyway. All PTAT self delete in 8 days..... Not to worry, the Hopper has a 2TB hard drive....
actually, talking to a dealer off the street, these are called "vampire electronics", it's harmful to the environment as it wastes electricity. Anything that you don't use, and the machine override and decided to turn on by itself, is sucking up electricity. Inside that box, there is a power supply that feeds different current to different part of the unit. So the current goes to the hard drive is not the same as the current goes to other parts of the main circuit board say, there are separate wires, separate current. As you use the hard drive, you are sucking up extra electricity, as supposedly, your unit can be OFF if you don't use it. Or say if you go on holiday or say it's christmas time, and all those main channels are all repeat shows so you don't need to record anything.
This is the 2nd time I've heard of a device that override human, the 1st time was in Terminator
PS: it wears out the hard drive a lot faster too