Dr. Oliver is never shown except as the Black Dino Thunder Ranger because Jason David Frank doesn't portray him in this special episode.
The placement of this episode within the Dino Thunder timeline is sometime after "The Passion of Connor" due to the Triassic Battlizer being present, and before "House of Cards". Although, Zeltrax was never seen leading Tyrannodrones at this point in the season. The whereabouts of Mesogog is never addressed.
The Dino Rangers ask why they don't remember the SPD Rangers or the events of "History", Bridge tells them it's because their memories were erased. While this is true, the actual reason they don't remember is because chronologically, the Dino Rangers haven't been brought to the future yet and have therefore only meeting the SPD Rangers for the first time. Grumm and the SPD Rangers took the wormhole back to 2004, it isn't until the Reefside High Reunion in 2005 that the Dino Rangers are brought to the future by Grumm. And since the Dino Rangers memories were erased in this episode, they would to their knowledge be meeting the SPD Rangers for the first time in "History".
This episode was aired early in Canada. It is first officially released as an exclusive DVD episode on S.P.D. Volumes 4 & 5. It's first official TV appearance is inconveniently after the series has ended for at least two months.
Jack makes a reference to Tommy's legacy by stating that he's read all about him at the academy. He only calls him "Black Ranger" though.