The Big Bang Theory: Season 2, Episode 20

The Hofstadter Isotope

A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.

Writing:
  • Chuck Lorre
  • Bill Prady
  • Adam Faberman

Stars:
Release Date: 2007-09-24
Seasons: 1 2 3 4 5 6 7 8 9 10 11 12
Metacritic: 8.0/10
TMDb: 7.9/10
  • Country: US
  • Language: English
  • Runtime: 22

Other episodes for this season

The Bad Fish Paradigm
Episode 1 - The Bad Fish Paradigm
The Codpiece Topology
Episode 2 - The Codpiece Topology
The Barbarian Sublimation
Episode 3 - The Barbarian Sublimation
The Griffin Equivalency
Episode 4 - The Griffin Equivalency
The Euclid Alternative
Episode 5 - The Euclid Alternative
The Cooper-Nowitzki Theorem
Episode 6 - The Cooper-Nowitzki Theor...
The Panty Piñata Polarization
Episode 7 - The Panty Piñata Polariza...
The Lizard-Spock Expansion
Episode 8 - The Lizard-Spock Expansio...
The White Asparagus Triangulation
Episode 9 - The White Asparagus Trian...
The Vartabedian Conundrum
Episode 10 - The Vartabedian Conundrum
The Bath Item Gift Hypothesis
Episode 11 - The Bath Item Gift Hypoth...
The Killer Robot Instability
Episode 12 - The Killer Robot Instabil...
The Friendship Algorithm
Episode 13 - The Friendship Algorithm
The Financial Permeability
Episode 14 - The Financial Permeabilit...
The Maternal Capacitance
Episode 15 - The Maternal Capacitance
The Cushion Saturation
Episode 16 - The Cushion Saturation
The Terminator Decoupling
Episode 17 - The Terminator Decoupling
The Work Song Nanocluster
Episode 18 - The Work Song Nanocluster
The Dead Hooker Juxtaposition
Episode 19 - The Dead Hooker Juxtaposi...
The Hofstadter Isotope
Episode 20 - The Hofstadter Isotope
The Vegas Renormalization
Episode 21 - The Vegas Renormalization
The Classified Materials Turbulence
Episode 22 - The Classified Materials...
The Monopolar Expedition
Episode 23 - The Monopolar Expedition