Supernatural 

The DVD release of The Complete Third Season did not include any episode-length audio commentaries.

 

Listing 17 commentaries.

Supernatural - The Complete First Season cover

Supernatural - The Complete First Season
2 commentaries
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Episode 1.01: “Pilot”
Commentators: Eric Kripke David Nutter Peter Johnson

Episode 1.04: “Phantom Traveler”
Commentators: Jared Padalecki Jensen Ackles

Supernatural - The Complete Second Season cover

Supernatural - The Complete Second Season
3 commentaries
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Episode 2.01: “In My Time of Dying”
Commentators: Kim Manners Jared Padalecki Jensen Ackles Cyrus Yavneh

Episode 2.20: “What It Is and What Should Never Be”
Commentator: Eric Kripke

Episode 2.21: “All Hell Breaks Loose Part I”
Commentators: Eric Kripke Robert Singer Sera Gamble

Supernatural: The Complete Fourth Season cover

Supernatural: The Complete Fourth Season
3 commentaries
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Episode 4.03: “In the Beginning”
Commentators: Eric Kripke Jeremy Carver

Episode 4.21: “When the Levee Breaks”
Commentators: Sera Gamble Robert Singer

Episode 4.22: “Lucifer Rising”
Commentator: Eric Kripke

Supernatural: The Complete Fifth Season cover

Supernatural: The Complete Fifth Season
1 commentary
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Episode 5.04: “The End”
Commentators: Ben Edlund Eric Kripke Robert Singer

Supernatural: The Complete Sixth Season cover

Supernatural: The Complete Sixth Season
2 commentaries
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Episode 6.09: “Clap Your Hands if You Believe”
Commentators: Robert Singer Sera Gamble Ben Edlund

Episode 6.15: “The French Mistake”
Commentators: Robert Singer Sera Gamble Ben Edlund

Supernatural: The Complete Seventh Season cover

Supernatural: The Complete Seventh Season
3 commentaries
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Episode 7.06: “Slash Fiction”
Commentators: Jared Padalecki Jensen Ackles

Episode 7.10: “Death's Door”
Commentators: Jim Beaver Steven Williams

Episode 7.23: “Survival of the Fittest”
Commentators: Sera Gamble Robert Singer

Supernatural: The Complete Eighth Season cover

Supernatural: The Complete Eighth Season
3 commentaries
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Episode 8.08: “Hunteri Heroici”
Commentators: Andrew Dabb Todd Aronauer

Episode 8.12: “As Time Goes By”
Commentators: Robert Singer Jeremy Carver Adam Glass

Episode 8.13: “Everybody Hates Hitler”
Commentators: Phil Sgriccia Ben Edlund

Involving 17 commentators.