Ok, I know this thread is a little bit early, since the 30th Anniversary isn't until 2010, but I was just looking at this feature
at SW.com, discussing the first trailer for ESB 30 years ago. I thought it might be a good way to kick off this thread. They have the video of the actual teaser, and while I'm sure many of us have seen it before, it is still fun to watch I think. They also have a short article with some facts about it. I guess I never realized that Harrison Ford did the voice over for this trailer, but now that they say it I can definitely hear that it is him.