My son saw ANH on his second day home from the hospital. I'm not even kidding about that either. I held him in my arms and watched it.
More recently, he wanted to play with my interactive R2-D2 all on his own. I pulled it out and turned it on and he loves it. Then he wanted to play with my Yoda and Darth Vader bobble heads. He loves those too and he's kind of tweaked the heads a bit.
I don't even watch Star Wars on a daily basis right now. I have a good sized display of toys and collectables that he sees, but there's nothing to really link them to "Star Wars" to him. He still loves them to death.
I plan on watching the HD versions with him fairly soon, but we try to limit his TV viewing to about an hour a day. He's not even two yet, so we try to do more educational activities instead of stairing at the "boob tube".