Time of Eve is a science fiction anime about a near-future in which androids are in common usage, and secretly becoming self-aware. If you haven't seen it and you have an hour and forty minutes to kill right now, you can watch it here. (I'll wait.)
Rather than go the robot uprising route, the series depicts androids as something somewhere between second-class citizens and slaves - all the androids have been purchased by a human master for some purpose as a housekeeper or babysitter or some kind of assistant. Androids follow and wear a holographic ring hovering over their head to distinguish them from people, from whom they are physically indistinguishable. What the series does with this is explore the implications of artificial intelligence in human society and their three laws-inspired motivations (mainly how do you factor "do not harm a human" when dealing with different types of emotional harm?), but it's that last point - how they're physically indistinguishable - that I want to talk about.