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The Official Big Bang Theory Podcast

Season 1 · Episode 9

The Origin of Apartment 4A

0.047mJuly 13, 2026

From the group's first meeting to the story behind the broken elevator — director Mark Cendrowski talks about the infamous flashback episode.

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Episode 1Penny and Leonard Make It Official
Episode 2The Evolution of Hoard Wolowitz
Episode 3Sheldon vs. Wil Wheaton
Episode 4The Bernadette Effect
Episode 5Of All 279 Episodes, This One Is Kunal Nayyar's Favorite
Episode 6How the First Female Writer Changed 'The Big Bang Theory'
Episode 7When Penny & Leonard (and Kaley & Johnny) Broke Up
Episode 8Mayim Bialik & the Women Who Changed 'The Big Bang Theory'

Episode 9The Origin of Apartment 4A

Episode 10How Stuart Got His Own Spin-Off