Over 12 hilarious and heartfelt seasons, The Big Bang Theory became one of the most beloved sitcoms of all time. But out of 279 episodes, one stands out as truly perfect. From its brilliant balance of character development and comedy, to the unforgettable moments between Sheldon and Penny that showcased a whole new depth to their dynamic, this episode of The Big Bang Theory will forever be in the minds of fans as truly perfect. Join us as we break down what makes “The Adhesive Duck Deficiency” a true Big Bang Theory masterpiece.