David Muir has had his career in journalism on his mind since he was just a child and he proved it with the best throwback photo we could have asked for. The 20/20 host delighted fans when he shared a pair of snapshots from his youth with one showing him interning at a local television studio. MORE: David Muir has heartfelt exchange with somone very special as he celebrates his birthday David, 48, posted the images of himself on Instagram and not surprisingly, he looked so different. WATCH: