The Big Bang Theory Season 2 - Episode 6

The Big Bang Theory - "The Cooper-Nowitzki Theorem"



After an open house night with grad students, a particularly obsessive grad student named Ramona Nowitzki (Riki Lindhome) takes a shine to Sheldon and insinuates herself into his life and work as a girlfriend/assistant. However, Sheldon remains oblivious to her intentions, leaving the gang doubly confounded. She proves to be a positive and helpful influence on his life...until she begins to cut off his social life - no more Halo night, paintball, comic books or Battlestar Galactica. Ramona also goes so far as to presume that Penny has a crush on Sheldon when she sees them talking together in the hallway adjoining their apartments. Sheldon finally realizes that he's in a "relationship" with Ramona and seeks help from Leonard to get rid of her. Things come to a head when the gang comes into the apartment and see that Sheldon's solved his scientific problem that Ramona made him work on day and night until he solved, and when Ramona suggests they share credit for his discovery - calling it the 'Cooper-Nowitzki Theorem', which is what the title refers to - Sheldon's response is 'Get out!'. Things seems to go back to normal until Sheldon is approached by another young woman in the same way Ramona approached Sheldon first, and the cycle begins again.
This episodes also features the first montage sequence in the series. The music is Be My Yoko Ono by The Barenaked Ladies, the same group that sings the shows' theme song.