I don't know if they're part of the EU, but George Lucas liked them and actually released them on home video more than once before the DVD (unlike the Holiday Special). The only difference between the LD and the DVD (in Caravan of Courage) is the opening credits. The LD says "The Ewok Adventure", while the DVD says "Caravan of Courage." What struck me as interesting is that "Caravan of Courage" was released theatrically in Europe. What I'm wondering is- does a widescreen version exist?