In this short scene, a deeply star-struck Sheldon meets one of his heroes, the great actor James Earl Jones, whom Sheldon knows as the voice of Darth Vader in the Star Wars movies.

This song teaches about the digit 0, portrayed as a superhero, as well as multiplication by powers of 10. This song was voted the 11th best song on the 30th anniversary edition. Sung and written by Bob Dorough.

David Gilmour of the legendary British rock band Pink Floyd performs "Wish You Were Here" live and unplugged.