Sheldon's birthday happens. His friends decide to invite Adam West after he tells them that when he was little he was told Batman would come to his birthday party and never showed.
Tropes:
- As Himself: Adam West shows up and grumbles about how all subsequent Batmans keep announcing they're Batman. He never had to.
- The Bus Came Back: Leslie Winkle reappears after being completely absent for 6 whole seasons.
- Literal-Minded: Amy helps Sheldon put on his suit for his birthday party and expresses that she hopes she'll see him in his birthday suit later. Sheldon gets confused and points out that he is in his birthday suit.
