Deleted scenes: As yet, "deleted scenes" from The Orville are simply cut from the broadcast episodes for timing purposes. As such, they may be considered equally as valid as the episodes they are derived from.
Inside The Orville: A bonus feature included with episodes released on Hulu. While these are out-of-universe, statements made within them by cast and crew regarding in-universe content can reasonably be considered valid.
The Orville (Dark Horse Comics): According to writer and executive producer David A. Goodman, Season 1.5 is meant to have soft canonical value: facts introduced in the comic books establish the show's canon unless contradicted by the television episodes.[1] The same is true of the followup, Season 2.5.
2017 press kits In-Universe Message: Notably establishes the date on which Ed Mercer takes command of the USS Orville as Sunday the 10th of September 2419. In reality, September 10th of 2419 will be a Tuesday.
