In one episode commentary he humorously relayed to David Tennant that he had received a letter from a viewer asking him to stop doing this.

They go into detail in the episode commentary for "Homer the Great".

Producer Phil Collinson added in an episode commentary that the name was a reference to the real-time US television series 24.

Includes hours of bonus materials, including new episode commentaries by Doris Day herself.

Read the episode commentary from Thinking About The Box.

It contained all thirteen episodes along with an assortment of bonus features, including optional episode commentary and animatics.

It contained a new documentary, cast interviews, some episode commentaries, galleries and deleted scenes.

There are numerous special features and two episode commentaries with the cast and crew.

Featuring all 12 episodes, it included features such as episode commentaries, behind-the-scenes footage and making-of features.

It is implied through the in-character episode commentaries that Dean had something to do with her disappearance.