In this episode, Sheldon Cooper (Iain Armitage) realizes that his high school curriculum at Medford High is no longer challenging enough for his intellect. After corresponding with a local professor, Sheldon receives an invitation to audit a college course on at a nearby university.
Whether you are watching it on a pristine Blu-ray or a grainy, decade-old digital rip, the truth remains the same: This was the episode where the show grew up.