I liked the overall look and feel of the unaired pilot. The apartment that Lenard and Sheldon share is an academic's dream in my opinion; dark, cluttered with books and papers, a compact and sparsely furnished social area, a fireplace that adds character to the room and walls adorned with numerous thought structuring white boards. The apartment in the ongoing show struck me as very bright and open; I generally don’t like bright and open, though it does provide more room for physical comedy. The character development was touch and go but in the end I believe Lenard needs no improvement in either the unaired pilot or the ongoing show. I believe that Sheldon's character would benefit from a combination of traits from both the unaired pilot and the current show, most notably the social openness balanced by his high levels of humorous narcissism. I don't believe there is a way to improve on the lead female role, I don't particularly care for either Katie or Penny and find the presence of a female character that is so overly ditzy insulting. What is needed is a smart (PhD level) female character that possesses a keen knowledge of both her field (possibly Anthropology, History or Psychology) and popular culture. This would serve to distinguish her from both the Katie/Penny character and also Amy and Bernadette; both characters that have seemingly no knowledge or an air of condescension concerning popular culture.