Grey's Anatomy 

The DVD releases of Season Five and Season Six did not include any audio commentaries.

 

Listing 13 commentaries.

Grey's Anatomy - Season 1 cover

Grey's Anatomy - Season 1
2 commentaries
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Episode 1.01: “A Hard Day's Night”
Commentators: Shonda Rhimes Peter Horton

Episode 1.01: “A Hard Day's Night”
Commentators: Sandra Oh Katherine Heigl T.R. Knight

Grey's Anatomy - Season Two cover

Grey's Anatomy - Season Two
5 commentaries
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Episode 2.06: “Into You Like a Train”
Commentators: Jeff Melman Krista Vernoff

Episode 2.09: “Thanks for the Memories (extended)”
Commentators: Shonda Rhimes Susan Vaill

Episode 2.12: “Grandma Got Run Over By a Reindeer”
Commentators: Sandra Oh Peter Horton

Episode 2.16: “It's the End of the World (Part I)”
Commentators: Shonda Rhimes Peter Horton Edward Ornelas

Episode 2.17: “As We Know It (Part II)”
Commentators: Shonda Rhimes Peter Horton Edward Ornelas

Grey's Anatomy - The Complete Third Season cover

Grey's Anatomy - The Complete Third Season
3 commentaries
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Episode 3.01: “Time Has Come Today (extended)”
Commentators: Kate Walsh Chandra Wilson

Episode 3.14: “Wishin' and Hopin'”
Commentators: Ellen Pompeo Kate Burton

Episode 3.21: “Desire”
Commentator: Sandra Oh

Grey's Anatomy: The Complete Fourth Season cover

Grey's Anatomy: The Complete Fourth Season
3 commentaries
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Episode 4.01: “A Change Is Gonna Come”
Commentators: Chyler Leigh Karin Gleason

Episode 4.08: “Forever Young (Extended)”
Commentators: Lauren Stamile Rob Corn

Episode 4.14: “The Becoming”
Commentators: Sandra Oh Julie Anne Robinson

Involving 18 commentators.