Either way, it is better equipped than most entry level home theater projectors.
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The projector draws a small amount of power whenever plugged in, enough so that the infra-red sensors are live and the unit can be powered up by the remote (or the switch on the top). Depending on the menu choice you select, the projector can remember the last source input used, and return to that one when you power up, or it can search all the inputs for the first live device it finds. Most people prefer to have it remember the last, instead of it slowly working its way through the more than half dozen possibilities.
Give or take some minor tweaking of color, this Optoma projector produces a great image out of the box. A calibration disk like AVIA works fine to tune up the color, saturation, etc., and is highly recommended. Still, if you just plug it in and turn it on, it will please you.