<p>You don't need the knighting scene at all. Anakin's dead, Palpy controls the galaxy. Credits. Opening Scroll of ANH introduced Darth Vader and BOOM there is the new bad guy. Obi-wan blames Vader for Ani's death and the viewer sees Obi lying to set Luke up to want to take out Vader - which, given Yoda's reaction to the news of Luke learning the truth, seems like a reasonable guess at their plan.</p>
<p>I do like keeping in delivering the babies to Alderaan and Tatooine, so that we know who Luke is when we see him. The bro-sis reveal in ROTJ is not that great, is it?</p>