I got introduced to D&D in college. I love that it's become so mainstream and normal. There isn't a video game today that wasn't influenced by D&D and its offspring, either directly (a lot of the dev teams and production teams have gamer history) or indirectly (pop culture is so infiltrated by gamers, it's inevitable).
This is a fun vid, and they've got some Old School books as props. It's also a catchy tune, with some eye candy for the nerds ;-)