The Big Bang Theory Theme Song

Big Bang Theory Theme Song Full
This is the opening of "The Big Bang Theory" but in a full version, the Big Bang Theory fans obviously know that the Opening is of 18 seconds long, but here i found the full version.
Enjoy it!!

The lunar excitation

The group, Penny and Zack, seeing the lunar experiment.

This episode of “The Big Bang Theory” is the last episode of the third season, and one of the best I had ever seen, this episode show us the relationship between Penny and Leonard after she bumped him. And how “Leonard destroyed her capacities to tolerate idiots” after the group (Sheldon, Howard, Raj and Leonard) show to her and her new boyfriend Zack a new experiment. And for feel better Penny wanted to have sex with Leonard.

Penny and Leonard before having sex.

At the same time Howard and Raj try to make an experiment searching for the ideal match for Sheldon, and they found a perfect match for him, called Amy Farrah Fowler, and for all people who’s fan of the series, she’ll be Sheldon girlfriend in a time.

This episode shows us very good themes and people who will be involved in the following season of the series.

Sheldon and Amy Farrah Fowler.

The staircase implementation

This episode of “The Big Bang Theory” talks about how Leonard tells to Penny why he didn’t go out of the apartment for all the argue that he had with Sheldon about everything, the thermostat and the degrees, seeing or no Babylon 5.
He tells how he met Sheldon and how Sheldon ruins things like a meeting with a girl, but Leonard tells too that Sheldon saves him to tell Joyce Kim (the girl) about his governmental research, because she was a North Korean Spy. Leonard tells to Penny how Sheldon saves him from an explosion of combustible gel and how its
The episode is very good, and like all the “The Big Bang Theory” episodes has a lot of jokes and humor. The good part of the episode is that there we know about Leonard; Sheldon; Raj and Howard past how all of them met, and how the elevator explode. And how all of them have to up and down three flights of stairs in the day.

The group in the beginning, like it appears in the "Flashback" of Leonard
when he tells the story to Penny.