Sorry if this topic has been beaten to death, but I find this current inconsisteny between the OT and the PT something I can not let go so I came up with a possibility that I wanted to get your guys' feedback on.
Why doesn't Owen recognize 3PO in ANH? I can't see Owen forgetting the name and voice of a droid that belonged to his stepmother who met a very tragic demise, irregardless of the fact his plating changed to gold. Also, the same day Anakin leaves after uncovering his mother's body, 3PO leaves with him. Then, in the not in the too distant future, he receives the son of Anakin which should serve as another reminder of the day 3PO left their homestead. I think these events and all details associated with them would serve as lasting memories.
My thought is this. If someone saw it fit to erase C-3PO's memory, maybe someone else saw it fit to stunt Owen's memory as well. How would this happen? Well if a Jedi could use a Jedi mind trick to temporarily cause someone to overlook the obvious, who's to say a Jedi couldn't use the same trick to selectively delete certain memories from one's conscious. Say, like Obi-Wan for instance, decided that Owen should forget certain connections between him and Anakin, then waved his hand, and whalla, Owen forgets. Why it would be a problem for Owen to remember who 3-PO was is speculative, but I hope Lucas explains this issue.
What are your thoughts? Is this poppycock or is it plausible? Give your input or theories, and like I said, sorry if this topic's been covered to the point of redundancy.