Context: LaserDisc's support for multiple audio tracks allowed for vast supplemental materials to be included on-disc and made it the first available format for "Special Edition" releases; the 1984 Criterion Collection edition of Citizen Kane is generally credited as being the first "Special Edition" release to home video,[citation needed] and for setting the standard by which future SE discs were measured. The disc provided interviews, commentary tracks, documentaries, still photographs, and other features for historians and collectors.

Question: LaserDisc was the first format to provide what type of releases to consumers?
Answer: "Special Edition"

Question: What was the first "Special Edition" film to be released to home video?
Answer: the 1984 Criterion Collection edition of Citizen Kane

Question: What bonus features were available on the first home video "Special Edition"?
Answer: interviews, commentary tracks, documentaries, still photographs

Question: What feature, unique to LaserDisc, made bonus content possible?
Answer: support for multiple audio tracks