Guest Star: Ed Lieberman

You are viewing a list of Ed Lieberman's 2 appearances on The Big Bang Theory.

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  The Staircase Implementation
  Season 3, Episode 22 - Aired May 17, 2010

  After a disagreement with Sheldon, Leonard tells Penny the story of how he moved into the apartment building, became friends with Sheldon, and how the elevator was broken.

  Appeared as Announcer (v.o)
• 

  The Anxiety Optimization
  Season 8, Episode 13 - Aired January 29, 2015

  When Sheldon struggles to achieve a breakthrough in the field of dark matter, he decides his work environment is too comfortable and sets out to create a state of productive anxiety.  Sheldon challenges his friends to irritate him and keep him on edge, but Sheldon is not the only one riled by his newfound thirst for discomfort. Meanwhile, the gang enjoy playing a new game that Howard invented, "Emily or Cinnamon?", which proves embarrassing for Raj.

  Appeared as Man