Aired Wednesday July 10, 12:30pm - 1:00pmon E4

The Big Bang Theory

Series 6 Episode 18: The Contractual Obligation Implementation

Raj and Lucy have their first date meeting in a library and texting to each other and the guys have to promote science careers for women at Howard's old middle school, while the girls go to Disneyland.

Original air date
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali
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