Why Doesn't Obi-Wan Remember R2-D2 in A New Hope

Obi-Wan Kenobi has led countless raids, missions, and adventures with R2-D2 in Attack of the Clones The Revenge of the Sith, however, why is it that in A New Hope, he tells Luke Skywalker that he doesn't remember ever owning a droid? The reason is answered in this podcast. WTF Happened To This Movie - Rogue One iTunes Spotify Google Podcasts