Tonight’s episode of The Big Bang Theory is Episode 22: The Staircase Implementation, in this episode, “Leonard tells Penny about how he met Sheldon for the first time…and what happened to the elevator .”
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- 3.22 The Staircase Implementation Episode Stills
The Chicago Tribune has posted an exclusive clip from the next of The Big Bang Theory, The Staircase Implementation. CBS has also added a promo for the episode that you can watch as well.
Tonight’s episode of The Big Bang Theory is Episode 21: The Plimpton Stimulation, in this episode “Leonard and Sheldon compete for the attention of a famous female physicist (Judy Greer).” It airs at 9:30 PM EST on CBS!
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- 3.21 The Plimpton Stimulation Episode Stills
CBS has updated their site for the next episode of The Big Bang Theory, Episode 21: The Plimpton Situation. Watch below!
Tonight’s episode of The Big Bang Theory is 3.20 The Spaghetti Catalyst. In the episode, “When Leonard and Penny aren’t speaking, Sheldon goes to extremes to keep them both happy.”
It is airing at NINE.
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- 3.20 – The Spaghetti Catalyst
CBS has updated their website with a preview up this Monday’s episode, The Spaghetti Catalyst. It is airing at NINE and there will be a repeat at 9:30 EST.
Today we have a few new episode stills from upcoming episodes of The Big Bang Theory!
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- 3.21 – The Plimpton Stimulation
- 3.22 – The Staircase Implementation
- 3.23 – The Lunar Excitation
CBS has announced the information for the season finale of The Big Bang Theory, Episode 23: The Lunar Excitation. They also have the description available: “While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon’s perfect match online.” The episode will air on May 24th. We also have a still from the episode:

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-3.23 The Lunar Excitation Episode Stills
CBS has also announced the information for Episode 3.22: The Staircase Implementation in which “Leonard tells Penny about how he met Sheldon for the first time … and what happened to the elevator”
This episode will air on May 17th.
As we speculated a few weeks ago, Episode 3.21 is entitled The Plimpton Situation. And in this episode, “Leonard and Sheldon compete for the attention of a famous female physicist.”
The episode will air on May 10th!
















