Orius
Unrepentant DM Supremacist
I would also count RotJ as the first time we see the deflection trick, maybe the remote counts, but RotJ is the first time Luke uses the ability in an actual fight.
As for Obi-Wan's less physical training, I think it's partly the approach Lucas took to making the films. When made the first Star Wars, I think maybe he was more inspired by Western style sowrd duels or something. With the prequels, he seems to have included more martial arts into the mix, with the duels being more physical, lots of super leaping and stuff like that.
And special effects probably plays a part too; with the prequels he could do stuff that was more over the top than the originals, since he can rely less on stop-motion and models and more on computers.
As for Obi-Wan's less physical training, I think it's partly the approach Lucas took to making the films. When made the first Star Wars, I think maybe he was more inspired by Western style sowrd duels or something. With the prequels, he seems to have included more martial arts into the mix, with the duels being more physical, lots of super leaping and stuff like that.
And special effects probably plays a part too; with the prequels he could do stuff that was more over the top than the originals, since he can rely less on stop-motion and models and more on computers.