Season two saw the writers fully embrace the fact that Kaley Cuoco and Jim Parsons have great chemistry together. It looked good when a comic book store employee was introduced late in the season, but I have my doubts about the producer's plans to bring him back on a semi-regular basis. Penny and the guys don't have any regular friends outside of their group.

If there's one area that the show is lacking, it's outside friends. The show won't die if these two should become an item. It seems like the writers are unnecessarily dragging this story out. It wasn't very believable for Penny to keep her mouth shut while Leonard getting ready to leave for the summer. As I pointed out in my review for that episode, there is no need to keep these two apart. The season conclusion wasn't particularly well done, with Penny at home, longing for Leonard to come back. He hasn't been fleshed out any better than the Leslie Winkle character. The writers haven't come up with very many compelling stories for him. I honestly can't say the same for Koothrappali. The list of possible NASA-related mishaps for Wolowitz is nearly endless. Koothrappali was featured in People magazine for a discovery in space while Wolowitz got into trouble with his own space ventures on more than one occasion. Wolowitz and Koothrappali may not get as much attention as their friends, but did star in a few of the episodes. Alice Amter and Brian George, the actors who play Koothrappali's parents, should really be featured more often via the webcam setup we've come to see them from. And Koothrappali's parents are real scene-stealers. It can even be of an intimate nature and she'll yell loud enough for her entire neighborhood to hear. Wolowitz (Carol Ann Susi) is never, ever shown, but there's no mistaking her loud voice, yelling at her son for various reasons. One of the things both Wolowitz and Koothrappali have in common is funny parents. It's funny from time to time, but it's also a little ridiculous. The second season showed him talking to guest star Summer Glau while drinking non-alcoholic beer, so we know he CAN do it. I would like to see Koothrappali get past the fact that he can't talk to women without hitting the bottle. They are rarely the center of attention, however. Wolowitz ( Simon Helberg) and Koothrappali (Kunal Nayyar) also remained true to their first season selves. Sheldon is still quite socially awkward, mind you, but he is picking up on some of the sarcastic comments made by others and by season's end, he was even cracking a few of his own jokes. The introduction of Penny to the mix has undoubtedly had an impact on his little world. If there were really any notable changes, they would be that he's begun learning from a lot of the social interactions that take place between his friends. Sheldon's second season wasn't drastically different from the first. Sheldon proved to be the funniest character on the show, even if the actor portraying him isn't receiving top billing. However, I would have to say that this show put a big spotlight on Jim Parsons, who plays Sheldon Cooper, Leonard's roommate and best friend. Of the cast members, Johnny Galecki and Kaley Cuoco are easily the two most famous actors. Penny's way of thinking doesn't really change a whole lot through the second season. It isn't very surprising for Penny to think that Leonard would become bored with her because she hasn't even graduated from a community college. It was Penny who made a mistake and let college come between them. Surprisingly, the date seemed to go fine for the most part. Much of the show is supposed to revolved around them.

The second season started out with the end of the first date between Penny ( Kaley Cuoco) and Leonard ( Johnny Galecki). It goes to show you how confident CBS is with this series. It's not often a show gets that sort of treatment. After the first season proved to be so successful, The Big Bang Theory was quickly renewed for three more seasons.

The list includes 8 Simple Rules, Roseanne, Grace Under Fire, and Two and a Half Men, just to name a few. Whether it's behind or in front of the camera, The Big Bang Theory's cast and crew have all been part of successful sitcoms. The reason for its success has to do with the people involved.

The first season quickly found an audience and was an overnight success. It didn't take long for The Big Bang Theory to become a hit on CBS.

The big bang theory season 2 episode 4