The Big Bang Theory Season 4 Episode 12 : The Bus Pants Utilization

Leonard's idea for a smartphone app derails his friendship with Sheldon.

NameThe Big Bang Theory Season 4 Episode 12: The Bus Pants Utilization
Air DateJanuary 6th, 2011
GenreComedy
NetworkCBS
Production CompaniesChuck Lorre Productions, Warner Bros. Television
DirectorMark Cendrowski
Plot Keywordsnerd, geek, friends, scientist, science, sitcom
Simon Helberg
Simon Helberg
Howard Wolowitz
Johnny Galecki
Johnny Galecki
Leonard Hofstadter
Jim Parsons
Jim Parsons
Sheldon Cooper
Kunal Nayyar
Kunal Nayyar
Rajesh Koothrappali
Kaley Cuoco
Kaley Cuoco
Penny
Mayim Bialik
Mayim Bialik
Amy Farrah Fowler

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