Maybe we'll see the emergence of a profession kind of like clinical psychology for diagnosing strange behavior in trained pattern-recognizing machines :)
Didn't they though? I'm pretty sure a couple of cameras for vision would mean they consume a couple of gigabytes rather quickly. That doesn't include sound, motor stress feedback and any other included sensors.
Asimov's robots would have consumed massively more data to learn. Of course, it wouldn't have required the data be curated and classified by humans.